Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUSE (RAD NO. 1, ACC, ECU-B)
1. Disconnect the RAD NO. 1 fuse from the No. 2 relay block.
2. Disconnect the ACC fuse from the instrument panel junction block.
3. Disconnect the ECU-B fuse from the engine room No. 2 relay block.
4. 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) and E76 (*1) receiver connectors.
Measure the voltage and resistance of the wire harness side connector.

Standard voltage

STANDARD VOLTAGE SPECIFICATIONS

Tester Connection	Condition	Specified Condition
E62-1 (B) - Body ground (*1)	Always	10 to 14 V
E62-11 (ACC) - Body ground (*1)	Ignition switch ACC	10 to 14 V
E47-4 (B) - Body ground (*2)	Always	10 to 14 V
E47-3 (ACC) - Body ground (*2)	Ignition switch ACC	10 to 14 V
E76-5 (+B) - Body ground (*1)	Always	10 to 14 V
E76-16 (ACC) - Body ground (*1)	Ignition switch ACC	10 to 14 V

Standard resistance

STANDARD RESISTANCE SPECIFICATIONS

Tester Connection	Specified Condition
E62-20 (GND) - Body ground (*1)	Below 1 Ω
E47-7 (GND) - Body ground (*2)	Below 1 Ω
E76-14 (GND) - Body ground (*1)	Below 1 Ω
HINT: 1: for Premium sound models 2: for Standard models

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 1: Identifying E47 (*2) Or E62 (*1) And E76 (*1) Receiver Connectors

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE