Lin Communication System Terminals Of Ecu
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK ASSEMBLY
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH
CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH
CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for 5 Door)
CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for 5 Door)
CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (w/ Sliding Roof System)
CHECK CERTIFICATION ECU (w/ Entry and Start System)
CHECK POWER MANAGEMENT CONTROL ECU (w/ Entry and Start System)
CHECK ID CODE BOX (w/ Entry and Start System)
CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (w/ Entry and Start System)
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY
CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/ Rear Air Conditioning System)
CHECK RAIN SENSOR (w/ Rain Sensor)
CHECK WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor)
CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System)
CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Manual Transmission, w/ Multi-function Switch)
CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Automatic Tansmission, w/ Multi-function Switch)
CHECK COMBINATION METER ASSEMBLY
Lin Communication System -- Terminals Of Ecu |
| CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND DRIVER SIDE JUNCTION BLOCK ASSEMBLY |
Text in Illustration*A
| for LHD
| *B
| for RHD
|
*1
| Main body ECU (multiplex network body ECU)
| -
| -
|
Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly (LandCruiser RM000003WBO05FX.html).
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G63-3 (GND2) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
A-11 (GND1) - Body ground
| None - Body ground
| Ground
| Always
| Below 1 Ω
|
A-30 (BECU) - Body ground
| None - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
A-32 (IG) - Body ground
| None - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY |
Disconnect the K4*1 or J9*2 multiplex network master switch assembly connector.
- *1: for LHD
- *2: for RHD
Text in Illustration*A
| for LHD
|
*B
| for RHD
|
Measure the resistance and voltage according to the value(s) in the table below.
for LHDTerminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
K4-12 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
K4-11 (B) - Body ground
| L - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
for RHDTerminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
J9-12 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
J9-11 (B) - Body ground
| L - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH |
Disconnect the K7 front power window regulator motor assembly LH connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
K7-1 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
K7-2 (B) - Body ground
| R - Body ground*1
G - Body ground*2
| Battery power supply
| Always
| 11 to 14 V
|
- *1: for LHD
- *2: for RHD
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH |
Disconnect the J7 front power window regulator motor assembly RH connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
J7-1 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
J7-2 (B) - Body ground
| G - Body ground*1
R - Body ground*2
| Battery power supply
| Always
| 11 to 14 V
|
- *1: for LHD
- *2: for RHD
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for 5 Door) |
Disconnect the M4 rear power window regulator motor assembly LH connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
M4-1 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
M4-2 (B) - Body ground
| W - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for 5 Door) |
Disconnect the L4 rear power window regulator motor assembly RH connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
L4-1 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
L4-2 (B) - Body ground
| W - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (w/ Sliding Roof System) |
Disconnect the W2 sliding roof drive gear sub-assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
W2-2 (E)- Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
W2-1 (B) - Body ground
| W - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
W2-5 (IG) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK CERTIFICATION ECU (w/ Entry and Start System) |
Disconnect the G38 certification ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G38-15 (E) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G38-1 (+B) - Body ground
| V - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G38-16 (IG) - Body ground
| W - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK POWER MANAGEMENT CONTROL ECU (w/ Entry and Start System) |
Disconnect the G51 power management control ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G51-6 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G51-5 (GND2) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G51-1 (AM22) - Body ground
| B - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G51-2 (AM21) - Body ground
| B - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
| CHECK ID CODE BOX (w/ Entry and Start System) |
Disconnect the G37 ID code box connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G37-8 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G37-1 (+B) - Body ground
| V - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU) (w/ Entry and Start System) |
Disconnect the G35 steering lock actuator assembly (steering lock ECU) connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G35-1 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G35-7 (B) - Body ground
| G - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G35-6 (IG2) - Body ground
| W - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY |
Disconnect the G25 air conditioning amplifier assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G25-14 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G25-21 (B) - Body ground
| V - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G25-1 (IG+) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY |
Disconnect the G23 integration control and panel assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G23-4 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G23-5 (IG+) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK AIR CONDITIONING CONTROL ASSEMBLY (w/ Rear Air Conditioning System) |
Disconnect the T7 air conditioning control assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
T7-8 (E) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
T7-1 (IG) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK RAIN SENSOR (w/ Rain Sensor) |
Disconnect the W6 rain sensor connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
W6-1 (ES) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
W6-4 (SIG) - Body ground
| GR - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor) |
|
Disconnect the G120 windshield wiper relay assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
for LHDTerminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G120-1 (EW) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G120-17 (+B) - Body ground
| G - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G120-3 (WIG) - Body ground
| G - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
for RHD (for RH Side Type Wiper Switch)Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G120-9 (EW) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G120-11 (+B) - Body ground
| G - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G120-7 (WIG) - Body ground
| G - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
for RHD (for LH Side Type Wiper Switch)Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G120-1 (EW) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G120-17 (+B) - Body ground
| G - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G120-3 (WIG) - Body ground
| G - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK DOUBLE LOCK DOOR CONTROL RELAY ASSEMBLY (w/ Double Locking System) |
Disconnect the G49 double lock door control relay assembly connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G49-14 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G49-7 (CPUB) - Body ground
| P - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G49-1 (+B) - Body ground
| R - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Manual Transmission, w/ Multi-function Switch) |
Disconnect the G76 driving support switch control ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G76-16 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G76-6 (+B) - Body ground
| L - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G76-7 (IG) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK DRIVING SUPPORT SWITCH CONTROL ECU (for Automatic Tansmission, w/ Multi-function Switch) |
Disconnect the G163 driving support switch control ECU connector.
Measure the resistance and voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G163-7 (GND) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G163-8 (+B) - Body ground
| L - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G163-10 (IG) - Body ground
| L - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
| CHECK COMBINATION METER ASSEMBLY |
Disconnect the G6 combination meter assembly connector.
Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
G6-21 (E2) - Body ground
| BR - Body ground
| Ground
| Always
| Below 1 V
|
G6-26 (B) - Body ground
| L - Body ground
| Battery power supply
| Always
| 11 to 14 V
|
G6-28 (IG+) - Body ground
| R - Body ground
| IG power supply
| Ignition switch ON
| 11 to 14 V
|
If the result is not as specified, there may be a malfunction on the wire harness side.
