Inspection Procedure

WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT STEREO COMPONENT CONTROLLER ASSY (+B, ACC, GND)

Disconnect the stereo component controller assy connector R24.

Measure the resistance according to the value(s) in STEREO COMPONENT CONTROLLER ASSY (+B, ACC, GND) RESISTANCE

Standard:

STEREO COMPONENT CONTROLLER ASSY (+B, ACC, GND) RESISTANCE

Tester connection	Condition	Specified condition
GND-Body ground	Always	Below 1 Ω

Measure the voltage according to the value(s) in STEREO COMPONENT CONTROLLER ASSY (+B, ACC, GND) VOLTAGE
Standard:

STEREO COMPONENT CONTROLLER ASSY (+B, ACC, GND) VOLTAGE

Tester connection	Condition	Specified condition
+B - GND	Always	10 to 14 V
ACC - GND	Ignition SW ACC	10 to 14 V

Fig 1: Disconnecting Stereo Component Controller Assy R24

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE OR DIAGNOSTIC TROUBLE CODE TABLE