Toyota Tacoma manuals

Toyota Corolla Repair Manual: Inspection procedure

1 Inspect stop lamp switch assy

  1. Check that the stop light lights up when brake pedal is depressed and turns off when the brake pedal is released.

2 Inspect skid control ecu terminal voltage(stp terminal)

2 Inspect skid control ecu terminal voltage(stp terminal)

  1. Disconnect skid control ecu connector.
  2. measure voltage between terminal stp (16) and gnd (1, 23) of skid control ecu harness side connector when the brake pedal is depressed.

    Voltage: 10 14 v

3 Check harness and connector(stop light switch  skid control

3 Check harness and connector(stop light switch skid control ecu)

  1. Check for open and short circuit in harness and connector between stop light switch and skid control ecu

Proceed to next circuit inspection shown on problem symptoms table

Proceed to next circuit inspection shown on problem symptoms table

4 Check harness and connector(stop light circuit)

  1. Check for open and short circuit in harness and connector of the stop light circuit

Repair or replace harness or connector

Repair or replace harness or connector

Circuit description
Wiring diagram ...

Pump motor is locked/open circuit in pump motor ground
Dtc c1251/51 pump motor is locked/open circuit in pump motor ground ...

Other materials:

Check open circuit
For the open circuit in the wire harness in fig. 1, Perform a resistance check in step (b) or a voltage check in step (c) to locate the section. Check the resistance.  Disconnect connectors a and c and measure the resistance between them. Resistance: 1 Ω or les ...

Circuit description
When the idle switch is turned on, a signal is sent to the cruise control ecu assy. The cruise control ecu assy uses this signal to correct the discrepancy between the throttle valve position and the actuator position sensor values to enable accurate cruise control at the set speed. If the idl ...

Precaution
1. Precaution of headlight bulb replacement  if even a thin film of oil is left on the surface of the halogen lamp, its service life will be shortened because the lamp will be burn at a higher temperature.  handle any halogen lamp with great care. Dropping, hitting or damagin ...

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