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
1 Check tvip ecu Check that the operation of the tvip function is normal. Hint: with this inspection, the tvip ecu cpu can be diagnosed if it works normally or not. 2 Check wire harness (tvip ecu integration relay) Disconnect the tvip ecu and integration relay connectors. ch ...

Automatic transmission / trans
Preparation Sst Recomended tools Equipment Lubricant Ssm (special service materials) ...

Onvehicle inspection
Notice: cold and hot in these sentences express the temperature of the coils themselves. Cold is from 10 c (14 f) to 50 c (122 f) and hot is from 50 c (122 f) to 100 c (212 f). 1. Inspect ignition coil (with igniter) and spark test  confirm dtc. Notice: if dtc is indicat ...

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