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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:

Replacement
1. Remove proportioning valve assy Using sst, disconnect the 5 brake tubes from the proportioning valve assy. Sst 0902300100 Remove the 2 bolts and proportioning valve assy from the body. 2. Install proportioning valve assy Install the proportioning valve assy wit ...

Listing the registered portable players
Select List Audio using .  The list of registered portable players will be displayed. ● Connecting the registered portable player to the audio system 1 Select the name of the portable player to be connected using . 2 Select Select using . ● Deleting the registered portabl ...

Inspection procedure
1 Check side squib(lh) circuit(airbag sensor assy center front seat airbag assy lh) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the front seat airbag assy (lh ...

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