Toyota Corolla Repair Manual: Terminals of ecu
1. Inspect integration relay
- Disconnect the connector from the integration relay.
- check the continuity between each terminal of the disconnected connector and the body ground, as shown in the illustration and table.
Standard:
If the result is not as specified, the vehicle’s side may malfunction.
- reconnect the connector and check the voltage between each terminal and the body ground, as shown in the illustration and table.
Standard:
If the result is not as specified, the integration relay may malfunction.
2. Inspect instrumental panel j/b (integration relay)
- Disconnect the connectors ia, ib, id, if, ih and ij of the instrument panel j/b.
- check the continuity between each terminal of the disconnected connectors and the body ground, as shown in the illustration and table.
Standard:
If the result is not as specified, the vehicle’s side may malfunction.
- reconnect the connectors and check the voltage between each terminal and the body ground, as shown in the illustration and table.
Standard:
If the result is not as specified, the integration relay or instrument panel j/b assembly may malfunction.
Problem symptoms table
How to proceed with troubleshooting
Hint:
troubleshooting of the wireless door lock control system is based on
the premise that the power door
lock system is operating normally. Therefore, before troubleshooting the
wireless ...
Other materials:
Other functions
■ Switching between outside air and recirculated air modes
Press .
The mode switches between outside air mode (indicator off) and recirculated air
mode (indicator on) each time is pressed.
■ Defogging the windshield
Defoggers are used to defog the windshield and front side w ...
Inspection procedure
1 Inspect dlc3 terminal voltage
Turn the ignition switch to on.
measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok:
voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy
and dlc3)
Check for open and short circuit in harness a ...
Changing engine switch modes
Modes can be changed by pressing the engine switch with the brake pedal (continuously
variable transmission) or clutch pedal (manual transmission) released. (The mode
changes each time the switch is pressed.)
► Vehicles without a multi-information display
Off*
The emergency flashers ca ...