Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota FJ Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT FUSE (ACC, AM1, RADIO NO. 1)
1. Remove the ACC fuse from the main body ECU.
2. Remove the AM1 fuse and RADIO NO. 1 fuse from the engine room R/B.
3. Measure the resistance of the fuses.
  Standard resistance:
  
  Below 1 Ω
4. Reinstall the fuses.
NG: REPLACE FUSE

OK: Go to Next Step

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - BATTERY AND BODY GROUND)

Disconnect the E41 receiver connector.

Fig 1: Identifying Radio Receiver Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage.

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
E41-4 (B) - Body ground	Always	11 to 14 V
E41-3 (ACC) - Body ground	Ignition switch ACC	11 to 14 V

Measure the resistance.

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
E41-7 (GND) - Body ground	Below 1 Ω

Reconnect the receiver connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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