Rain Sensor Circuit: Procedure
- INSPECT RAIN SENSOR
- Disconnect the R7 rain sensor connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition R7-1 (SIG) - R7-3 (ES) Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V
NG → See step 2
OK → See step 4
- Disconnect the R7 rain sensor connector.
- INSPECT OVERHEAD JUNCTION BLOCK (MAP LIGHT ASSEMBLY)
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition R5-23 (IG2) - R5-40 (GND2) Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V
NG → See step 3
OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (RAIN SENSOR - OVERHEAD JUNCTION BLOCK)
- Measure the voltage according to the value(s) in the table below.
- CHECK HARNESS AND CONNECTOR (OVERHEAD JUNCTION BLOCK - BATTERY AND BODY GROUND)
- Disconnect the R5 overhead junction block connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Switch Condition Specified Condition R5-39 (GND1) - Body ground Always Below 1 Ω - Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Switch Condition Specified Condition R5-21 (IG) - R5-39 (GND1) Engine switch on (IG) 11 to 14 V Engine switch off Below 1 V
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR
OK → See step 5
- Disconnect the R5 overhead junction block connector.
- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [08/2012 - ]
- REPLACE OVERHEAD JUNCTION BLOCK (MAP LIGHT ASSEMBLY). Refer to COMPONENTS [08/2012 - ]