Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Combination meter / Malfunction in tachometer
Toyota Corolla (E120): Malfunction in tachometer
Wiring diagram
Inspection procedure
- Check output value of ecm.
- Connect the hand–held tester to dlc3.
- Turn the ignition switch to on and push the hand–held tester main switch on.
- Select the data list mode on the hand–held tester.
2 Inspect combination meter assy
(Reference) inspection using oscilloscope
- check the input signal waveform.
- Remove the combination meter assy with connectors still connected.
- Connect the oscilloscope to the terminals c9–19 of combination meter assy and body ground.
- Start engine.
- Check the signal waveform.
3 Check harness and connector(between ecm and combination meter assy)
- Remove the combination meter.
- check the continuity between terminals 5 (tach) of ecm and c9–19 of combination meter connector.
Standard: there is continuity.
Check and replace ecm
Other materials:
Replacement
Hint: components:
1. Precaution
2. Disconnect battery negative terminal
3. Remove front door scuff plate rh
4. Remove rear door scuff plate rh
5. Remove front door opening trim rh
6. Remove rear door opening trim rh
7. Remove lap belt outer anchor cover
8. Remove center pillar garnis ...
Auto connection
To turn auto connection mode on, set “Bluetooth* Power” to on.
When you register a phone, auto connection will be activated. Always set it to
this mode and leave the Bluetooth® phone in a place where a connection can be established.
When the engine switch is turned to ACCESSORY or ON <IG ...
Heater control & accessory assy
Replacement
1. Remove console panel upper
2. Remove instrument cluster finish panel
3. Remove heater control & accessory assy
Release the 2 fitting claws and pull out the heater control
& accessory assy.
Using a screwdriver, open the claw of the cable clamp and
dis ...