Inspection Procedure
- INSPECT FUSE (RAD NO. 1, ACC)
- Disconnect the RAD NO. 1 fuse from the engine room No. 2 relay block.
- Disconnect the ACC fuse from the instrument panel junction block.
- Measure the resistance of the fuses.
Standard resistance:
Below 1 Ω
NG: REPLACE FUSE
OK: Go to next step
- CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BATTERY AND CONNECTOR)
- Disconnect the E47 (*2) or E62 (*1) receiver connector.
- Measure the voltage and resistance according to the value(s) in the table below.
Standard Voltage
STANDARD VOLTAGE REFERENCE CHARTTester Connection Switch Condition Specified Condition E62-1 (B) - Body ground (*1) Always 11 to 14 V E62-11 (ACC) - Body ground (*1) Ignition switch ACC 11 to 14 V E47-4 (B) - Body ground (*2) Always 11 to 14 V E47-3 (ACC) - Body ground (*2) Ignition switch ACC 11 to 14 V Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Specified Condition E62-20 (GND) - Body ground (*1) Below 1 Ω E47-7 (GND) - Body ground (*2) Below 1 Ω HINT:
*1: for Separate Type Amplifier System
*2: for Built-in Type Amplifier System
NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE