Operation CHARM: Car repair manuals for everyone.

W/Harness Inspection





Tuner/Amplifier
U1942 Fm2 Antenna circuit Low - W/Harness Inspection

Terminal and Connector Inspection

1. Many malfunctions in the electrical system are caused by poor harness and terminals.
Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.
2. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
3. Has a problem been found?






Signal Circuit Inspection

1. IG KEY "OFF".
2. Disconnected FM2 glass antenna connector and Tuner & Amplifier connector.
3. Measure resistance between connector of antenna circuit and chassis ground.

Specification : infinity




4. Is the measured resistance within specifications?