Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

CHECK WIRE HARNESS (RADIO RECEIVER - STEREO COMPONENT AMPLIFIER)

Disconnect the R6 receiver connector.
Disconnect the S15 amplifier connector.

Measure the resistance of the wire harness side connectors.

Standard resistance

STANDARD RESISTANCE

Tester Connection	Specified Condition
R6-9 (L+) - S15-3 (L+)	Below 1 Ω
R6-19 (L-) - S15-2 (L-)	Below 1 Ω
R6-8 (R+) - S15-5 (R+)	Below 1 Ω
R6-18 (R-) - S15-4 (R-)	Below 1 Ω
R6-9 (L+) - Body ground	10 kΩ or higher
R6-19 (L-) - Body ground	10 kΩ or higher
R6-8 (R+) - Body ground	10 kΩ or higher
R6-18 (R-) - Body ground	10 kΩ or higher
R6-10 (SLD) - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

Fig 1: Identifying R6 Receiver Connector

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