Manual Controls Circuit Troubleshooting - Climate Control
Manual Controls Circuit Troubleshooting1. Disconnect navigation or multi-information display unit connector A (5P).
2. Disconnect climate control unit connector A (16P).
3. Check for continuity between the mentioned terminals of climate control unit connector A (16P) and navigation or multi-information display unit connector A (5P).
Is there continuity?
YES - Go to step 4.
NO - Repair any open in the wire(s) between the climate control unit and the navigation or multi-information display unit.
4. Check for continuity between the body ground and climate control unit connector A (16P) terminals No. 8, 15, and 16 individually.
Is there continuity?
YES - Repair any short to body ground in the wire(s) between the climate control unit and the navigation or multi-information display unit.
NO - Check for loose wires or poor connections at climate control unit connector A (16P) and at navigation or multi-information display unit connector A (5P). If the connections are good, substitute a known-good climate control unit, and recheck. If the problem still exists, replace the navigation or multi-information display unit.