Climate Control System Symptom Troubleshooting - The blower, the heater controls, and the A/C system do not work
WARNING: This page is about a different variant/trim than selected.
NOTE: Do this troubleshooting procedure only if sent here by symptom troubleshooting index .
- Fuse check
-1. Check the following fuse.
Fuse No. D9 Is the fuse OK?
YES
Go to step 2.
NO
Replace the fuse, and recheck. If the fuse blows again, repair a short in the No. D9 fuse circuit.
- Open wire check (IG2_A/C line)
-1. Disconnect the following connector.
Climate control unit connector A (32P) -2. Turn the vehicle to the ON mode.
-3. Measure the voltage between test points 1 and 2.
Test condition Vehicle ON mode Climate control unit connector A (32P): disconnected Test point 1 Climate control unit connector A (32P) No. 32 Test point 2 Body ground Is there battery voltage?
YES
The IG2_A/C wire is OK. Go to step 3.
NO
Repair an open in the IG2_A/C wire.
- Open wire check (GND line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode Climate control unit connector A (32P): disconnected Test point 1 Climate control unit connector A (32P) No. 28 Test point 2 Body ground Is there 1.0 Ω or less?
YES
Replace the climate control unit .
NO
Check for an open in the GND wire. If the wire is OK, check for poor ground at G402.