Meter / Gauge System Entire Combination Meter Does Not Operate
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT COMBINATION METER
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 ignition switch is turned to ON, the indicator will not operate.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT COMBINATION METER |
Disconnect the E46 connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection
| Condition
| Specified Condition
|
E46-30 (ET) - 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
|
E46-32 (B) - Body ground
| Always
| 11 to 14 V
|
E46-33 (IG+) - Body ground
| Ignition switch ON
| 11 to 14 V
|
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
