Pinout Values and Diagnostic Parameters

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


1. CHECK WINDSHIELD WIPER ECU





(a) Disconnect the E89 and E90 ECU connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the E89 and E90 ECU connectors.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the ECU may have a malfunction.
2. CHECK NO. 2 MAIN BODY ECU





(a) Disconnect the L33 ECU connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the L33 ECU connector.
(d) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, the ECU may have a malfunction.
3. CHECK WINDSHIELD WIPER SWITCH





(a) Disconnect the E16 switch connector.
(b) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction on the wire harness side.
4. CHECK MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)





(a) Disconnect the 2D, 2B, E2 and E1 main body ECU connectors.
(b) Measure the voltage according to the value(s) in the table below.





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





(a) Disconnect the R7 and R12 map light connectors.
(b) Measure the voltage according to the value(s) in the table below.





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





(a) Disconnect the R11 rain sensor connector.
(b) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction on the wire harness side.
7. CHECK HEADLIGHT CLEANER CONTROL RELAY





(a) Disconnect the relay connector.
(b) Measure the voltage according to the value(s) in the table below.





If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the relay connector.
(d) Measure the voltage according to the value(s) in the table below.





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