Can Communication System Steering Control Ecu Communication Stop Mode
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CAN BUS LINE FOR DISCONNECTION (STEERING CONTROL ECU SUB BUS LINE)
CHECK WIRE HARNESS (IG, PGND)
CAN COMMUNICATION SYSTEM - Steering Control ECU Communication Stop Mode |
DESCRIPTION
Detection Item
| Symptom
| Trouble Area
|
STEERING CONTROL ECU COMMUNICATION STOP MODE
| - "VGRS" is not displayed on the "Communication Bus Check" of the intelligent tester
- Applies to "STEERING CONTROL ECU COMMUNICATION STOP MODE" in the "DTC COMBINATION TABLE"
| - Power source or inside the steering control ECU
- Steering control ECU sub bus line or connector
|
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.CHECK CAN BUS LINE FOR DISCONNECTION (STEERING CONTROL ECU SUB BUS LINE) |
Turn the engine switch off.
Disconnect the steering control ECU (L70).
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Value
|
L70-9 (CANH) - L70-20 (CANL)
| Engine switch off
| 54 to 69 Ω
|
| | REPAIR OR REPLACE STEERING CONTROL ECU SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) |
|
|
| 2.CHECK WIRE HARNESS (IG, PGND) |
Reconnect the steering control ECU connector (L70).
Disconnect the steering control ECU connector (A42).
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Value
|
A42-7 (PGND) - 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
|
A42-3 (IG) - Body ground
| Engine switch on (IG)
| 10 to 14 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| REPLACE STEERING CONTROL ECU |
|
