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 1 Up and 1 R
5. Connect the negative battery cable.




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

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.




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.