Toyota Tacoma manuals

Toyota Corolla Repair Manual: Check dlc3

The vehicles ecm uses the iso 91412 for communication protocol. The terminal arrangement of the dlc3 complies with sae j1962 and matches the iso 91412 format.

Hint:

Hint

: if the display shows unable to connect to vehicle when you have connected the cable of the obd ii scan tool or the handheld tester to the dlc3, turned the ignition switch on and operated the scan tool, there is a problem on the vehicle side or tool side.

Inspect battery voltage

Battery voltage: 11 to 14 v

If voltage is below 11 v, recharge the battery before proceeding.

Check mil

  1. The mil comes on when the ignition switch is turned on and the engine is not running.

    Hint

    : if the mil is not illuminated, troubleshoot the mil circuit .

  2.  when the engine is started, the mil should go off. If the mil remains on, it means that the diagnosis system has detected a malfunction or abnormality in the system.
Description
When troubleshooting obd ii vehicles, the only difference from the usual troubleshooting procedure is that you need to connect the vehicle to the obd ii scan tool complying with sae j1978 or ...

Dtc check/clear
Notice: if there is no dtc in the normal mode, check the pending fault code using the continuous test results function (mode 7 for sae j1979) on the obd ii scan tool or the handheld tester. ...

Other materials:

Inspection procedure
Hint: this dtc chart is on the premise that the engine is cranked normally. If the engine is not cranked, proceed to the problem symptoms table on page 0542. Read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions wh ...

Automatic transaxle assy (atm)
Precaution  The automatic transaxle is composed of highly precisionfinished parts, necessitating careful inspection before reassembly because even a small nick could cause fluid leakage or affect the performance. The instructions here are organized so that you work on only one ...

Warning lights and indicators
The warning lights and indicators on the instrument cluster and center panel inform the driver of the status of the vehicles various systems. For the purpose of explanation, the following illustration displays all warning lights and indicators illuminated. ► Vehicles with a drive monito ...

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