Fault Code 10

Fig. 12 ATC wiring harness and lead connectors:

1. Set ATC control to Off mode, then remove ATC control.
2. Measure voltage at ATC control connector pin 15. If voltage measures less than 4 volts, proceed to step 3. If voltage measures more than 4 volts, replace ATC control.
3. If voltage measures 0.4-0.8 volt, replace ATC control. If voltage does not measure 0.4-0.8 volt, proceed to step 4.
4. Disconnect 13-way connector from PVM, then check for continuity between ATC control pin 15 and PVM pin 2. If continuity exists, replace PVM. If continuity does not exist, repair circuit and recheck system.