Operation CHARM: Car repair manuals for everyone.

Control Assembly: Testing and Inspection

CLIMATE CONTROL UNIT INSPECTION

On-board Diagnostic Test Procedure
1. Disconnect the negative battery cable.
2. Remove the A/C amplifier.
3. Disconnect the A/C amplifier connector (24-pin).
4. Using a jumper wire or a similar device, short circuit A/C amplifier connector (24-pin) terminals 1P and 1R.
5. Connect the negative battery cable.




6. Turn the ignition switch to the ON position (engine off).

Output Signal Inspection

Output Signal Inspection:




1. After performing the on-board diagnostic test procedure, inspect according to the given table:
2. Disconnect the jumper wire or the similar device connected to the A/C amplifier connector (24-pin) to exit the on-board diagnostic test function.

Switch Inspection
1. After performing the on-board diagnostic test procedure, turn on the audio.

Step 1-Step 2:




2. Inspect according to the given table:
3. Disconnect the jumper wire or the similar device connected to the A/C amplifier connector (24-pin) to exit the on-board diagnostic test function.

Temperature Control Dial Inspection
1. After performing the on-board diagnostic test procedure, turn on the audio.
2. Press the audio POWER and SCAN (upper) buttons simultaneously.
3. "A/C TEMP--" is displayed on the information display.




4. Inspect according to the given table:
5. Disconnect the jumper wire or the similar device connected to the A/C amplifier connector (24-pin) to exit the on-board diagnostic test function.