Meter / Gauge System Entire Combination Meter Does Not Operate
Meter. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUSE (GAUGE2, ECU-B, IG2)
INSPECT IG2 RELAY
CHECK WIRE HARNESS (COMBINATION METER - BATTERY AND BODY GROUND)
METER / GAUGE SYSTEM - Entire Combination Meter does not Operate |
DESCRIPTION
This circuit provides power to the combination meter assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1.INSPECT FUSE (GAUGE2, ECU-B, IG2) |
Remove the GAUGE2 fuse from the instrument panel junction block.
Remove the ECU-B fuse from the No. 2 relay block.
Remove the IG2 fuse from the No. 1 relay block.
Measure the resistance of the fuses.
- Standard resistance:
- Below 1 Ω
Remove the IG2 relay from the No. 1 relay block.
Measure the resistance of the relay.
- Standard resistance:
Tester Connection
| Specified Condition
|
3 - 5
| 10 kΩ or higher
|
3 - 5
| Below 1 Ω (when battery voltage is applied to terminals 1 and 2)
|
3.CHECK WIRE HARNESS (COMBINATION METER - BATTERY AND BODY GROUND) |
Disconnect the E22 meter connector.
Measure the voltage of the wire harness side connector.
- Standard voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
E22-22 (B) - Body ground
| Always
| 11 to 14 V
|
E22-21 (IG+) - Body ground
| Ignition switch on (IG)
| 11 to 14 V
|
Measure the resistance of the wire harness side connector.
- Standard resistance:
Tester Connection
| Specified Condition
|
E22-33 (ET) - Body ground
| Below 1 Ω
|
| REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
OK |
|
|
|
REPLACE COMBINATION METER ASSEMBLY |
|