Meter / Gauge System Entire Combination Meter Does Not Operate
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUSE (METER, MPX-B NO. 2)
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY AND BODY GROUND)
METER / GAUGE SYSTEM - Entire Combination Meter does not Operate |
DESCRIPTION
This circuit is the power source circuit for the combination meter. This circuit provides 2 power source types: 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 for the meter CPU. However, it is also used for communication. If a voltage of 12 V is not applied to terminal IG+ when the ignition switch is ON, indicators will not operate.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT FUSE (METER, MPX-B NO. 2) |
Remove the METER and MPX-B NO. 2 fuses from the engine room relay block.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
METER fuse
| Always
| Below 1 Ω
|
MPX-B NO.2 fuse
|
| 2.CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY AND BODY GROUND) |
Disconnect the E119 combination meter assembly connector.
Measure the resistance and voltage according to the value(s) in the tables below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
E119-20 (ET) - Body ground
| Always
| Below 1 Ω
|
- Standard Voltage:
Tester Connection
| Switch Condition
| Specified Condition
|
E119-21 (B) - Body ground
| Always
| 11 to 14 V
|
E119-22 (IG+) - Body ground
| Ignition switch ON
|
Text in Illustration*a
| Component without harness connected
(Combination Meter Assembly)
|
| OK |
|
|
|
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
