Diagnosis Procedure
- CHECK HARNESS CONNECTOR CONNECTION
Check the following harness connector for disconnection or looseness.
- CAN potential distributor electrical connector (chassis 1)
- CAN gateway
Is the inspection result normal?
YES
GO TO 2.
NO
Securely connect the harness connectors.
- CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for CAN gateway. Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace the malfunctioning part.
- CHECK CIRCUIT (SHORT TO BATTERY)
- Turn ignition switch OFF.
- Disconnect the following unit connectors.
- CAN potential distributor electrical connector (chassis 1)
- CAN gateway
- Check voltage between CAN potential distributor electrical connector (chassis 1) harness connector and ground.
Terminals
Voltage
(Approx.)
+
-
CAN potential distributor electrical connector (chassis 1)
Ground
Connector
Terminal
M807
10
--
0 V
11
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness.
- CHECK CIRCUIT (SHORT TO GROUND)
Check continuity between CAN potential distributor electrical connector (chassis 1) harness connector and ground.
CAN potential distributor electrical connector (chassis 1)
Ground
Continuity
Connector
Terminal
M807
10
--
Not existed
11
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace harness.
- CHECK CIRCUIT (SHORT WITH CAN-H AND CAN-L)
Check continuity between CAN potential distributor electrical connector (chassis 1) harness connector terminals.
CAN potential distributor electrical connector (chassis 1)
Continuity
Connector
Terminal
Connector
Terminal
M807
10
M807
11
Not existed
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace harness.
- CHECK CIRCUIT (OPEN)
Check continuity between the following unit harness connectors.
- CAN potential distributor electrical connector (chassis 1)
- CAN gatewayCAN potential distributor electrical connector (chassis 1) - CAN gateway
CAN potential distributor electrical connector (chassis 1)
CAN gateway
Continuity
Connector
Terminal
Connector
Terminal
M807
10
M218
17
Existed
11
16
Is the inspection result normal?
YES
INSPECTION END
NO
Repair or replace harness.