Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT RADIO AND NAVIGATION ASSY (+B, ACC, GND)

Disconnect the radio and navigation assy connector R4.

Measure the resistance according to the value (s) in the table below.

Standard:

TERMINALS RESISTANCE

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

Fig 1: Disconnecting Radio And Navigation Assy Connector R4

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Measure the voltage according to the value (s) in the table below.

Standard:

TERMINALS VOLTAGE

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

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