Headlight Cleaner Switch Circuit
WIPER AND WASHER: WIPER AND WASHER SYSTEM: Headlight Cleaner Switch Circuit
- Headlight Cleaner Switch Circuit
DESCRIPTION
This circuit detects the conditions of the headlight cleaner switch.
The headlight cleaner control relay receives the following signals:
* Headlight cleaner switch signal
* Headlight operating signal
* Daytime running light operating signal
* Front washer motor operating signal
WIRING DIAGRAM
PROCEDURE
1. CHECK COWL SIDE JUNCTION BLOCK RH (HDLO SIGNAL)
(a) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- CHECK WIRE HARNESS (HEADLIGHT CLEANER CONTROL RELAY - COWL SIDE JUNCTION BLOCK RH)
OK -- Continue to next step.
2. INSPECT ENGINE ROOM JUNCTION BLOCK NO.2 (FRONT WINDOW WASHER SIGNAL)
(a) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- CHECK WIRE HARNESS (HEADLIGHT CLEANER CONTROL RELAY - ENGINE ROOM JUNCTION BLOCK)
OK -- Continue to next step.
3. CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - BATTERY AND BODY GROUND)
(a) Disconnect the K12 integration control & panel assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.
4. CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - BATTERY AND BODY GROUND)
(a) Disconnect the K12 integration control & panel assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - HEADLIGHT CLEANER CONTROL RELAY)
OK -- Continue to next step.
5. CHECK COWL SIDE JUNCTION BLOCK RH (HRLY SIGNAL)
(a) Measure the voltage according to the value(s) in the table below.
Standard voltage:
NG -- CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - COWL SIDE JUNCTION BLOCK RH)
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
6. CHECK WIRE HARNESS (HEADLIGHT CLEANER CONTROL RELAY - COWL SIDE JUNCTION BLOCK RH)
(a) Disconnect the A5 headlight cleaner control relay connector.
(b) Disconnect the A39 cowl side junction block RH connector.
(c) Measure the resistance according to the values in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
7. CHECK WIRE HARNESS (HEADLIGHT CLEANER CONTROL RELAY - ENGINE ROOM JUNCTION BLOCK)
(a) Disconnect the A5 headlight cleaner control relay connector.
(b) Disconnect the 2F engine room junction block No. 2 connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
8. CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - COWL SIDE JUNCTION BLOCK RH)
(a) Disconnect the K12 headlight cleaner switch connector.
(b) Disconnect the DL cowl side junction block RH connector.
(c) Measure the resistance according to the values in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
9. CHECK WIRE HARNESS (HEADLIGHT CLEANER SWITCH - HEADLIGHT CLEANER CONTROL RELAY)
(a) Disconnect the K12 headlight cleaner switch connector.
(b) Disconnect the A5 headlight cleaner control relay connector.
(c) Measure the resistance according to the values in the table below.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE