Toyota Tacoma manuals

Toyota Corolla Repair Manual: Wiring diagram

1 Inspect terminal voltage(pi) (a) turn

  1. Turn the ignition switch to on.
  2.  measure voltage between terminal 5 (pi) of cruise control ecu assy and body ground, when the cruise control main switch button is on and off.

    Ok:

2 Inspect combination meter assy

2 Inspect combination meter assy

3 Check harness and connector(between cruise control ecu assy

3 Check harness and connector(between cruise control ecu assy and combination meter assembly)

  1. Check for open and short circuit in harness and connector between cruise control ecu assy and combination meter assembly

Check and replace cruise control ecu assy

Check and replace cruise control ecu assy

Circuit description
When the cruise control main switch assy button is turned to on, cruise main indicator light comes on. Wiring diagram ...

Diagnosis circuit
...

Other materials:

Replacement
1. Remove engine under cover rh 2. Drain coolant 3. Remove front wheel rh 4. Remove cylinder head cover no.2 Remove the 2 nuts, 2 clips and cylinder head cover. 5. Remove fan and generator v belt Turn the vribbed belt tensioner slowly clockwise and loosen it. Then, remove t ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Monitor description
The battery supplies electricity to the ecm even when the ignition switch is off. This electricity allows the ecm store data such as dtc history, freeze frame data, fuel trim values, and other data. If the battery voltage falls below a minimum level, the ecm will conclude that there is a fault ...

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