DTC Diagnosis Procedure
- CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection E191. Refer to Ground Inspection in Inspection .
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace ground connection.
- CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-I
- Disconnect battery current sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between battery current sensor harness connector and ground.
+
-
Voltage
(Approx.)
Battery current sensor
Connector
Terminal
E7
4
Ground
5 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 3.
- CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT-II
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between battery current sensor harness connector and ECM harness connector.
+
-
Continuity
Battery current sensor
ECM
Connector
Terminal
Connector
Terminal
E7
4
F143
81
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between battery current sensor harness connector and ECM harness connector.
+
-
Continuity
Battery current sensor
ECM
Connector
Terminal
Connector
Terminal
E7
2
F142
100
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT
- Check the continuity between battery current sensor harness connector and ECM harness connector.
+
-
Continuity
Battery current sensor
ECM
Connector
Terminal
Connector
Terminal
E7
1
F143
52
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- Check the continuity between battery current sensor harness connector and ECM harness connector.
- CHECK BATTERY CURRENT SENSOR
Refer to Component Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace battery negative cable assembly.