DTC Diagnosis Procedure
- CHECK AMBIENT SENSOR POWER SUPPLY
- Ignition switch OFF.
- Disconnect ambient sensor harness connector.
- Ignition switch ON.
- Check voltage between ambient sensor harness connector and ground.
(+)
(-)
Voltage
(Approx.)
Ambient sensor
Connector
Terminal
E76
1
Ground
5 V
Is the inspection result normal?
YES
GO TO 2.
NO
GO TO 4.
- CHECK AMBIENT SENSOR GROUND CIRCUIT
- Ignition switch OFF.
- Check continuity between ambient sensor harness connector and ground.
Ambient sensor
--
Continuity
Connector
Terminal
E76
2
Ground
Yes
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connector.
- CHECK AMBIENT SENSOR
Check ambient sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
Replace combination meter. Refer to Removal and Installation .
NO
Replace ambient sensor. Refer to Removal and Installation .
- CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR OPEN
- Ignition switch OFF.
- Disconnect combination meter connector.
- Check continuity between ambient sensor harness connector and combination meter harness connector.
Ambient sensor
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
E76
1
M77
49
Yes
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace harness or connector.
- CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR GROUND SHORT
Check continuity between ambient sensor harness connector and ground.
Ambient sensor
--
Continuity
Connector
Terminal
E76
1
Ground
No
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace harness or connector.
- CHECK AMBIENT SENSOR POWER SUPPLY CIRCUIT FOR POWER SHORT
- Ignition switch ON.
- Check voltage between ambient sensor harness connector and ground.
Ambient sensor
--
Voltage
(Approx.)
Connector
Terminal
E76
1
Ground
0 V
Is the inspection result normal?
YES
Replace combination meter. Refer to Removal and Installation .
NO
Repair or replace harness or connector.