Diagnosis Procedure
- CHECK HARNESS CONNECTOR CONNECTION
Check the following harness connector for disconnection or looseness.
- Electronic ignition switch control unit
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 electronic ignition switch control unit. Refer to Wiring Diagram .
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.
- Electronic ignition switch control unit
- Check voltage between data link connector and ground.
Terminals
Voltage
(Approx.)
+
-
Data link connector
Ground
Connector
Terminal
M43
6
--
0 V
14
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness.
- CHECK CIRCUIT (SHORT TO GROUND)
Check continuity between data link connector and ground.
Data link connector
Ground
Continuity
Connector
Terminal
M43
6
--
Not existed
14
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 data link connector terminals.
Data link connector
Continuity
Connector
Terminal
Connector
Terminal
M43
6
M43
14
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.
- Data link connector
- Electronic ignition switch control unitData link connector - Electronic ignition switch control unit
Data link connector
Electronic ignition switch control unit
Continuity
Connector
Terminal
Connector
Terminal
M43
6
M327
10
Existed
14
9
Is the inspection result normal?
YES
INSPECTION END
NO
Repair or replace harness.