Inspection Procedure

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

CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - STEREO JACK ADAPTER)

Disconnect the D74 radio receiver connector and D75 stereo jack adapter connector.

Measure the resistance.

Standard resistance

RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
AUXI (D74-19) - AUXO (D75-4)	Below 1 Ω
ALI (D74-17) -ALO (D75-1)	Below 1 Ω
ARI(D74-15)-ARO(D75-2)	Below 1 Ω
ASGN (D74-16) - ASGN (D75-3)	Below 1 Ω
AUXI (D74-19) or AUXO (D75-4) -Body ground	10 kΩ or higher
ALI (D74-17) - or ALO (D75-1) - Body ground	10 kΩ or higher
ARI (D74-15) or ARO (D75-2) - Body ground	10 kΩ or higher
ASGN (D74-16) or ASGN (D75-3) -Body ground	10 kΩ or higher

Fig 1: Identifying Radio Receiver And Stereo Jack Adapter Connectors

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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