Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

The purpose of this circuit is to prevent the engine from stalling while driving in lockup 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 lockup clutch while braking is in progress.

Monitor description

Monitor description

The circuit prevents the engine from stopping when the vehicle is stopped by sudden braking when the torque converter clutch is in the lockup mode. The ecm receives the signal from the stop light switch at the time brake pedal is depressed. Then, the ecm sends the signal to the lockup solenoid valve not to be in lockup condition. When the stop light switch remains on during stop and go driving, the ecm interprets this as a fault in the stop light switch and the mil comes on. The vehicle must stop and go (3 km/h (2 mph) to 30 km/h (19 mph)) ten times for two driving cycles in order to detect malfunction.

Monitor strategy

Typical enabling condition

Typical enabling condition

Typical malfunction thresholds

Typical malfunction thresholds

Wiring diagram

Wiring diagram

Inspection procedure

Brake switch b circuit high
Dtc p0724 brake switch b circuit high ...

Inspection procedure
1 Inspect stop lamp switch assy 2 Check harness and connector(stop lamp switch assy ecm)   Install the stop lamp switch assy.  disconnect the ecm connector.  measure the ...

Other materials:

Replacement
Hint: components: 1. Discharge refrigerant from refrigeration system sst 0711058060 (0711758080, 0711758090, 0711778050, 0711788060, 0711788070, 0711788080) 2. Disconnect cooler refrigerant suction hose no.1   Remove the bolt and disconnect the cooler refrigerant suction ...

Chassis
Onvehicle inspection 1. Inspect steering linkage  check the steering wheel freeplay .  check the steering linkage for looseness or damage.  Check that the tie rod ends do not have excessive play.  Check that the dust seals and boots are not damaged.  Check ...

Adjustment
Hint: in the rh side, work in the same procedure as in the lh side. Since the centering bolt is used as a door side hinge bolt, the door hinge cannot be adjusted with it on. Substitute the bolt with washer for the centering bolt. 1. Inspect front door panel subassy lh Check ...

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