Wiper And Washer System Headlight Cleaner Switch Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HEADLIGHT OPERATION

INSPECT HEADLIGHT CLEANER SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (CLEANER SWITCH - INSTRUMENT PANEL J/B, CLEANER RELAY)

CHECK WIRE HARNESS (CLEANER RELAY - INSTRUMENT PANEL J/B)

CHECK INSTRUMENT PANEL J/B

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Check the headlight is operate normally.
   

   OK:

   The headlight operates normally.
   

1. Remove the headlight cleaner switch assembly.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   Tester Connection	Switch Condition	Specified Condition
   5 - 8	ON	Below 25 Ω
   	OFF	10 kΩ or higher

1. Disconnect the E4 headlight cleaner switch assembly connector.
   

2. Disconnect the A39 headlight cleaner control relay connector.
   

3. Disconnect the IH instrument panel J/B connector.
   

4. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   E4-8 - A39-2 (H)	Always	Below 1 Ω
   E4-8 - Body ground	Always	10 kΩ or higher
   E4-5 - IH-13	Always	Below 1 Ω
   E4-5 - Body ground	Always	10 kΩ or higher

1. Disconnect the ID instrument panel J/B connector.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard resistance:

   Tester Connection	Condition	Specified Condition
   A39-1 (HDLO) - ID-3	Always	Below 1 Ω

1. Measure the voltage according to the value(s) in the table below.
   

   Standard voltage:

   Tester Connection	Condition	Specified Condition
   IH-13 - Body ground	Ignition switch ON and headlight dimmer switch OFF	Below 1 V
   IH-13 - Body ground	Ignition switch ON and headlight dimmer switch ON	10 to 14 V