Can Communication System Clearance Warning Ecu Communication Stop Mode
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN BUS LINE FOR DISCONNECTION (CLEARANCE WARNING ECU SUB BUS LINE)
CHECK WIRE HARNESS (IG, E)
CAN COMMUNICATION SYSTEM - Clearance Warning ECU Communication Stop Mode |
DESCRIPTION
Detection Item
| Symptom
| Trouble Area
|
CLEARANCE WARNING ECU COMMUNICATION STOP MODE
| - "CLEARANCE SONAR" is not displayed on the "Communication Bus Check" of the intelligent tester
- Applies to "CLEARANCE WARNING ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
| - Power source or inside the clearance warning ECU
- Clearance warning ECU sub bus line or connector
|
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK CAN BUS LINE FOR DISCONNECTION (CLEARANCE WARNING ECU SUB BUS LINE) |
Turn the engine switch off.
Disconnect the clearance warning ECU (A40).
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Value
|
A40-23 (R1) - A40-24 (R2)
| Engine switch off
| 54 to 69 Ω
|
| | REPAIR OR REPLACE CLEARANCE WARNING ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) |
|
|
| 2.CHECK WIRE HARNESS (IG, E) |
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Value
|
A40-27 (E) - Body ground
| Always
| Below 1 Ω
|
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Condition
| Specified Value
|
A40-8 (IG) - Body ground
| Engine switch on (IG)
| 10 to 14 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| REPLACE CLEARANCE WARNING ECU |
|
