Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
Networking. Land Cruiser. Urj200, 202 Grj200 Vdj200
CHECK FOR OPEN IN CAN BUS WIRE (MAIN BODY ECU)
CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 CAN JUNCTION TERMINAL)
CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR)
CHECK FOR OPEN IN CAN BUS WIRE (NO. 8 CAN JUNCTION CONNECTOR)
CHECK FOR OPEN IN CAN BUS WIRE (NO. 9 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION TERMINAL)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 9 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (ECU, SENSOR)
CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION TERMINAL)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (NO. 9 CAN JUNCTION CONNECTOR)
CHECK FOR SHORT IN CAN BUS WIRES (ECU, SENSOR)
DTC U1002 Lost Communication with Gateway Module (Main Body) |
DESCRIPTION
- The main body ECU (multiplex network body ECU) will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 1.
- When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected to sub bus 1, the main body ECU (multiplex network body ECU) recognizes and memorizes that the ECU is connected to sub bus 1. Based on this memorized data, the main body ECU (multiplex network body ECU) monitors for malfunctions in the ECUs connected to sub bus 1 when communicating with those ECUs. If the main body ECU (multiplex network body ECU) cannot receive response signals from the ECUs that have been memorized as those connected to sub bus 1, the main body ECU (multiplex network body ECU) determines that a malfunction exists.
| DTC Code | DTC Detection Condition | Trouble Area |
| U1002 | Main body ECU (multiplex network body ECU) cannot receive signals from all ECUs that have been memorized as those connected to sub bus 1. |
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- *1: w/ Memory
- *2: w/ Power Tilt and Power Telescopic Steering Column System
- *3: w/ Power Back Door System
- *4: w/ Tail Gate Closer System
WIRING DIAGRAM
INSPECTION PROCEDURE
- NOTICE:
- Before measuring the resistance of the CAN bus, turn the ignition switch off and leave the vehicle for 1 minute or more without operating the key, switches or opening or closing the doors. After that, disconnect the cable from the negative (-) battery terminal and leave the vehicle for 1 minute or more before measuring the resistance.
- After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Click here).
- Inspect the fuses for circuits related to this system before performing the following inspection procedure.
- HINT:
- Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.
- Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below may help determine the cause of the malfunction.
| 1.CHECK SUB BUS 1 |
Disconnect the cable from the negative (-) battery terminal.
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Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Resistance: Malfunction E117-9 (CANP) - E117-10 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Below 53 Ω: Short in line E117-9 (CANP) - E117-10 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 Ω Higher than 70 Ω: Open in CAN main bus line E117-9 (CANP) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Below 6 kΩ: +B short E117-10 (CANN) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Below 6 kΩ: +B short E117-9 (CANP) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher Below 200 Ω: Ground short E117-10 (CANN) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher Below 200 Ω: Ground short
Text in Illustration *a Component with harness connected
(Main Body ECU [Multiplex Network Body ECU])*b Front view of DLC3 Result Result Proceed to OK A NG (Open circuit in CAN main bus wire) B NG (Short circuit between bus wires) C NG - Ground short
- +B short
D
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| A | |
| 2.CHECK FOR DTC |
Clear the DTCs.
Recheck for DTCs and check that no DTCs are output.
- OK:
- DTC U1002 is not output.
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| OK | ||
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| 3.CHECK FOR OPEN IN CAN BUS WIRE (MAIN BODY ECU) |
Disconnect the main body ECU (multiplex network body ECU) connector.
 |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E117-9 (CANP) - E117-10 (CANN) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
Text in Illustration *a Rear view of wire harness connector
(to Main Body ECU [Multiplex Network Body ECU])
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| OK | ||
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| 4.CONNECT CONNECTOR |
Reconnect the E117 main body ECU (multiplex network body ECU) connector.
| NEXT | |
| 5.CHECK FOR OPEN IN CAN BUS WIRE (NO. 3 CAN JUNCTION TERMINAL) |
Disconnect the No. 3 CAN junction terminal connector.
 |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition L69-3 (CANH) - L69-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
Text in Illustration *a Rear view of wire harness connector
(to No. 3 CAN Junction Terminal)
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| OK | ||
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| 6.CONNECT CONNECTOR |
Reconnect the L69 No. 3 CAN junction terminal connector.
| NEXT | |
| 7.CHECK FOR OPEN IN CAN BUS WIRE (NO. 7 CAN JUNCTION CONNECTOR) |
Disconnect the No. 7 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 7 CAN Junction Connector) | *b | to No. 8 CAN Junction Connector |
| *c | to Main Body ECU (Multiplex Network Body ECU) | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E134-1 (CANH) - E134-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 8 CAN junction connector E134-2 (CANH) - E134-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Main body ECU (multiplex network body ECU)
Result Result Proceed to OK A NG (to Main body ECU CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C
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| A | ||
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| 8.CONNECT CONNECTOR |
Reconnect the E134 No. 7 CAN junction connector.
| NEXT | |
| 9.CHECK FOR OPEN IN CAN BUS WIRE (NO. 8 CAN JUNCTION CONNECTOR) |
Disconnect the No. 8 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 8 CAN Junction Connector) | *b | to No. 7 CAN Junction Connector |
| *c | to No. 9 CAN Junction Connector | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E136-1 (CANH) - E136-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 7 CAN junction connector E136-2 (CANH) - E136-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 9 CAN junction connector
Result Result Proceed to OK A NG (to No. 7 CAN junction connector CAN main wire) B NG (to No. 9 CAN junction connector CAN main wire) C
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| A | ||
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| 10.CONNECT CONNECTOR |
Reconnect the E136 No. 8 CAN junction connector.
| NEXT | |
| 11.CHECK FOR OPEN IN CAN BUS WIRE (NO. 9 CAN JUNCTION CONNECTOR) |
Disconnect the No. 9 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 9 CAN Junction Connector) | *b | to No. 8 CAN Junction Connector |
| *c | to No. 3 CAN Junction Terminal | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to L71-1 (CANH) - L71-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 8 CAN junction connector L71-2 (CANH) - L71-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 3 CAN junction terminal
Result Result Proceed to OK A NG (to No. 3 CAN junction terminal CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C
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| A | ||
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| 12.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU) |
Disconnect the main body ECU (multiplex network body ECU) connector.
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Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E117-9 (CANP) - E117-10 (CANN) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
Text in Illustration *a Rear view of wire harness connector
(to Main Body ECU [Multiplex Network Body ECU])
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| OK | ||
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| 13.CONNECT CONNECTOR |
Reconnect the E117 main body ECU (multiplex network body ECU) connector.
| NEXT | |
| 14.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION TERMINAL) |
Disconnect the No. 3 CAN junction terminal connector.
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Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition L69-3 (CANH) - L69-2 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω
Text in Illustration *a Rear view of wire harness connector
(to No. 3 CAN Junction Terminal)
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| OK | ||
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| 15.CONNECT CONNECTOR |
Reconnect the L69 No. 3 CAN junction terminal connector.
| NEXT | |
| 16.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR) |
Disconnect the No. 7 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 7 CAN Junction Connector) | *b | to No. 8 CAN Junction Connector |
| *c | to Main Body ECU (Multiplex Network Body ECU) | *d | to Outer Mirror Control ECU Assembly LH (w/ Memory) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E134-1 (CANH) - E134-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 8 CAN junction connector E134-2 (CANH) - E134-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω Main body ECU (multiplex network body ECU) E134-3 (CANH) - E134-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Outer mirror control ECU assembly LH*
- *: w/ Memory
Result Result Proceed to OK A NG (to Main body ECU CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 17.CONNECT CONNECTOR |
Reconnect the E134 No. 7 CAN junction connector.
| NEXT | |
| 18.CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 CAN JUNCTION CONNECTOR) |
Disconnect the No. 8 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 8 CAN Junction Connector) | *b | to No. 7 CAN Junction Connector |
| *c | to No. 9 CAN Junction Connector | *d | to Outer Mirror Control ECU Assembly RH (w/ Memory) |
| *e | to Power Seat Switch Assembly (w/ Memory) | *f | to Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic Steering Column System) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E136-1 (CANH) - E136-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 7 CAN junction connector E136-2 (CANH) - E136-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 9 CAN junction connector E136-3 (CANH) - E136-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Outer mirror control ECU assembly RH*1 E136-4 (CANH) - E136-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Power seat switch assembly*1 E136-5 (CANH) - E136-16 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Multiplex tilt and telescopic ECU*2
- *1: w/ Memory
- *2: w/ Power Tilt and Power Telescopic Steering Column System
Result Result Proceed to OK A NG (to No. 7 CAN junction connector CAN main wire) B NG (to No. 9 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 19.CONNECT CONNECTOR |
Reconnect the E136 No. 8 CAN junction connector.
| NEXT | |
| 20.CHECK FOR SHORT IN CAN BUS WIRES (NO. 9 CAN JUNCTION CONNECTOR) |
Disconnect the No. 9 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 9 CAN Junction Connector) | *b | to No. 8 CAN Junction Connector |
| *c | to No. 3 CAN Junction Terminal | *d | to Power Back Door Unit Assembly (Power Back Door ECU) (w/ Power Back Door System) |
| *e | to No. 2 Main Body ECU (w/ Tail Gate Closer System) | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to L71-1 (CANH) - L71-12 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 8 CAN junction connector L71-2 (CANH) - L71-13 (CANL) Cable disconnected from negative (-) battery terminal 108 to 132 Ω No. 3 CAN junction terminal L71-3 (CANH) - L71-14 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher Power back door unit assembly (power back door ECU)*1 L71-4 (CANH) - L71-15 (CANL) Cable disconnected from negative (-) battery terminal 200 Ω or higher No. 2 main body ECU*2
- *1: w/ Power Back Door System
- *2: w/ Tail Gate Closer System
Result Result Proceed to OK A NG (to No. 3 CAN junction terminal CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 21.CHECK FOR SHORT IN CAN BUS WIRES (ECU, SENSOR) |
Reconnect the CAN junction connector.
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Disconnect the connector that includes terminals CANH and CANL from the ECU or sensor to which the short circuited branch line is connected.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E117-9 (CANP) - E117-10 (CANN) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
Text in Illustration *a Component with harness connected
(Main Body ECU [Multiplex Network Body ECU])
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| OK | ||
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| 22.CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU) |
Disconnect the main body ECU (multiplex network body ECU) connector.
 |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E117-9 (CANP) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E117-10 (CANN) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E117-9 (CANP) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E117-10 (CANN) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
Text in Illustration *a Rear view of wire harness connector
(Main Body ECU [Multiplex Network Body ECU])*b Front view of DLC3
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| OK | ||
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| 23.CONNECT CONNECTOR |
Reconnect the E117 main body ECU (multiplex network body ECU) connector.
| NEXT | |
| 24.CHECK FOR SHORT IN CAN BUS WIRES (NO. 3 CAN JUNCTION TERMINAL) |
Disconnect the No. 3 CAN junction terminal connector.
 |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition L69-3 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L69-2 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L69-3 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L69-2 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
Text in Illustration *a Rear view of wire harness connector
(to No. 3 CAN Junction Terminal)*b Front view of DLC3
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| OK | ||
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| 25.CONNECT CONNECTOR |
Reconnect the L69 No. 3 CAN junction terminal connector.
| NEXT | |
| 26.CHECK FOR SHORT IN CAN BUS WIRES (NO. 7 CAN JUNCTION CONNECTOR) |
Disconnect the No. 7 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 7 CAN Junction Connector) | *b | Front view of DLC3 |
| *c | to No. 8 CAN Junction Connector | *d | to Main Body ECU (Multiplex Network Body ECU) |
| *e | to Outer Mirror Control ECU Assembly LH (w/ Memory) | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E134-1 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 8 CAN junction connector E134-12 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E134-1 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E134-12 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E134-2 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Main body ECU (multiplex network body ECU) E134-13 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E134-2 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E134-13 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E134-3 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Outer mirror control ECU assembly LH* E134-14 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E134-3 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E134-14 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
- *: w/ Memory
Result Result Proceed to OK A NG (to Main body ECU CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 27.CONNECT CONNECTOR |
Reconnect the E134 No. 7 CAN junction connector.
| NEXT | |
| 28.CHECK FOR SHORT IN CAN BUS WIRES (NO. 8 CAN JUNCTION CONNECTOR) |
Disconnect the No. 8 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 8 CAN Junction Connector) | *b | Front view of DLC3 |
| *c | to No. 7 CAN Junction Connector | *d | to No. 9 CAN Junction Connector |
| *e | to Outer Mirror Control ECU Assembly RH (w/ Memory) | *f | to Power Seat Switch Assembly (w/ Memory) |
| *g | to Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic Steering Column System) | - | - |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to E136-1 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 7 CAN junction connector E136-12 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E136-1 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-12 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-2 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 9 CAN junction connector E136-13 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E136-2 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-13 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-3 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Outer mirror control ECU assembly RH*1 E136-14 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E136-3 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-14 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-4 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Power seat switch assembly*1 E136-15 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E136-4 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-15 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-5 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Multiplex tilt and telescopic ECU*2 E136-16 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E136-5 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E136-16 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
- *1: w/ Memory
- *2: w/ Power Tilt and Power Telescopic Steering Column System
Result Result Proceed to OK A NG (to No. 7 CAN junction connector CAN main wire) B NG (to No. 9 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 29.CONNECT CONNECTOR |
Reconnect the E136 No. 8 CAN junction connector.
| NEXT | |
| 30.CHECK FOR SHORT IN CAN BUS WIRES (NO. 9 CAN JUNCTION CONNECTOR) |
Disconnect the No. 9 CAN junction connector.
| *a | Rear view of wire harness connector (to No. 9 CAN Junction Connector) | *b | Front view of DLC3 |
| *c | to No. 8 CAN Junction Connector | *d | to No. 3 CAN Junction Terminal |
| *e | to Power Back Door Unit Assembly (Power Back Door ECU) (w/ Power Back Door System) | *f | to No. 2 Main Body ECU (w/ Tail Gate Closer System) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition Connected to L71-1 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 8 CAN junction connector L71-12 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L71-1 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-12 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-2 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 3 CAN junction terminal L71-13 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L71-2 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-13 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-3 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher Power back door unit assembly (power back door ECU)*1 L71-14 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L71-3 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-14 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-4 (CANH) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher No. 2 main body ECU*2 L71-15 (CANL) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher L71-4 (CANH) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher L71-15 (CANL) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
- *1: w/ Power Back Door System
- *2: w/ Tail Gate Closer System
Result Result Proceed to OK A NG (to No. 3 CAN junction terminal CAN main wire) B NG (to No. 8 CAN junction connector CAN main wire) C NG (ECU or sensor CAN branch wire) D
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| A | ||
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| 31.CHECK FOR SHORT IN CAN BUS WIRES (ECU, SENSOR) |
Reconnect the CAN junction connector.
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Disconnect the connector that includes terminals CANH and CANL from the ECU or sensor to which the bus line shorted to +B, GND is connected.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition E117-9 (CANP) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E117-10 (CANN) - E22-16 (BAT) Cable disconnected from negative (-) battery terminal 6 kΩ or higher E117-9 (CANP) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher E117-10 (CANN) - E22-4 (CG) Cable disconnected from negative (-) battery terminal 200 Ω or higher
Text in Illustration *a Component with harness connected
(Main Body ECU [Multiplex Network Body ECU])*b Front view of DLC3
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| OK | ||
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