Diagnosis Procedure
- CHECK FUSE
- Turn ignition switch OFF.
- Check that the following fuse is not blown (open).
Location
Fuse No.
Capacity
Fuse and fusible link block 1
#216
5A
#214
10A
#220
10A
#213
15A
#212
15A
Are the fuses blown (open)?
YES
Replace the fuse. [Check the power supply if fuse is blowing again.]
NO
GO TO 2.
- CHECK ECM GROUND CIRCUIT
- Disconnect ECM harness connector.
- Check the continuity between ECM harness connector and ground.
+
-
Continuity
ECM
Connector
Terminal
E48
98
Ground
Existed
100
102
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace error-detected parts.
- CHECK ECM POWER SUPPLY
- Turn ignition switch ON.
- Check the voltage between ECM harness connector and ground.
+
-
Voltage
ECM
Connector
Terminal
E48
97
Ground
Battery voltage
99
101
112
Is the inspection result normal?
YES
INSPECTION END
NO
GO TO 4.
- CHECK ECM POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Disconnect fuse and fusible link block 1 harness connector.
- Check the continuity between ECM harness connector and "fuse and fusible link block 1" harness connector.
+
-
Continuity
ECM
Fuse and fusible link block 1
Connector
Terminal
Connector
Terminal
E48
97
E55
11
Existed
99
101
112
13
- Also check harness for short to ground.
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK MOTOR RELAY CONTROL CIRCUIT
- Check the continuity between ECM harness connector and "fuse and fusible link block 1" harness connector.
+
-
Continuity
ECM
Fuse and fusible link block 1
Connector
Terminal
Connector
Terminal
E48
123
E65
45
Existed
- Also check harness for short to ground.
Is the inspection result normal?
YES
Perform trouble diagnosis for power supply circuit. Refer to Wiring Diagram .
NO
Repair or replace error-detected parts.
- Check the continuity between ECM harness connector and "fuse and fusible link block 1" harness connector.