Pinout Values and Diagnostic Parameters

WIPER AND WASHER: WIPER AND WASHER SYSTEM: TERMINALS OF ECU

1. CHECK FRONT LIGHT ECU (ENGINE ROOM NO. 1 JUNCTION BLOCK)

(a) Measure the voltage of the ECU connectors.

If the result is not as specified, the ECU may have a malfunction.

2. CHECK MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)

(a) Disconnect the DD and DK ECU connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.

If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the DD and DK ECU connectors.

(d) Measure the voltage of the connectors.

If the result is not as specified, the ECU may have a malfunction.

3. CHECK MAIN BODY ECU LH (COWL SIDE JUNCTION BLOCK LH)

(a) Disconnect the PA, PD and PL ECU connectors.

(b) Measure the voltage and resistance of the wire harness side connectors.

If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the PA, PD and PL ECU connectors.

(d) Measure the voltage of the connectors.

HINT
* *1: w/ Adaptive front-lighting system
* *2: w/o Adaptive front-lighting system

If the result is not as specified, the ECU may have a malfunction.

4. CHECK COMBINATION SWITCH

(a) Disconnect the K22 switch connector.

(b) Measure the voltage and resistance of the wire harness side connector.

If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the K22 switch connector.

(d) Measure the voltage of the connector.

If the result is not as specified, the switch may have a malfunction.

5. CHECK HEADLIGHT CLEANER CONTROL RELAY

(a) Disconnect the A5 relay connector.

(b) Measure the voltage and resistance of the connector.

If the result is not as specified, there may be a malfunction on the wire harness side.

(c) Reconnect the A5 relay connector.

(d) Measure the voltage of the connector.

If the result is not as specified, the relay may have a malfunction.