Meter / Gauge System Entire Combination Meter Does Not Operate
Meter. Lexus Is250, Is220D. Gse20 Ale20
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT COMBINATION METER ASSEMBLY
METER / GAUGE SYSTEM - Entire Combination Meter does not Operate |
DESCRIPTION
- This circuit is the power source circuit for the meter.
- This circuit provides two types of power sources; one is a constant power source mainly used as a backup power source, and the other is a power source mainly used for signal transmission. The constant power source is mainly used as a backup power source of the meter CPU, however, it is also used for communication.
- If a voltage of 12 V is not applied to terminal IG+ when the engine switch is on (IG), the indicator will not operate.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT COMBINATION METER ASSEMBLY |
Disconnect the J34 connector.
Measure the resistance according to the value(s) in the table below.
- Standard resistance:
Tester Connection
| Condition
| Specified Condition
|
J34-1 (E2) -
Body ground
| Always
| Below 1 Ω
|
C34-13 (ES) -
Body ground
| Always
| Below 1 Ω
|
Measure the voltage according to the value(s) in the table below.
- Standard voltage:
Tester Connection
| Condition
| Specified Condition
|
J34-12 (IG+) -
Body ground
| Engine switch on (IG)
| 10 to 14V
|
J34-23 (B) -
Body ground
| Always
| 10 to 14 V
|
J34-24 (B) -
Body ground
| Always
| 10 to 14 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| OK |
|
|
|
| REPLACE COMBINATION METER ASSEMBLY |
|
