Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Combination meter / Entire combination meter does not operate
Toyota Corolla (E120): Entire combination meter does not operate
Wiring diagram
Inspection procedere
1 Check fuse
- Check that continuity exists of dome fuse.
- check that continuity exists of gauge fuse.
- check that continuity exists of am1 fuse.
2 Inspect combination meter assy
- Check continuity.
- Disconnect the ”c9” connector from combination meter assy.
- Check continuity between terminal c9–2 of combination
meter assy connector and body ground.
Ok: continuity exists
- Check voltage.
- Disconnect the ”c9” connector from combination meter assy.
- Measure voltage between terminal c9–5 of combination
meter assy connector and body ground.
Voltage: 10 – 14 v
- turn the ignition switch to on.
- Measure voltage between terminal c9–4 of combination
meter assy connector and body ground.
Voltage: 10 – 14 v
Check and replace combination meter assy
Other materials:
Diagnostic trouble code chart
Hint:
when the srs warning light remains lit up and the dtc is the normal
code, this means a voltage source
drops.
This malfunction is not stored in memory by the airbag sensor assy center
and if the power source
voltage returns to normal, the srs warning light will autom ...
Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center – front
seat airbag assy lh)
Disconnect the negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
disconnect the connectors between the airbag sensor
assy center and the front seat airbag assy ...
Circuit description
The purpose of this circuit is to prevent the engine from stalling while
driving in lock–up condition, when
brakes are suddenly applied.
When the brake pedal is depressed, this switch sends a signals to the ecm. Then
the ecm cancels the operation
of the lock–up clutch while braking is i ...