Fault Code 7

Fig. 12 ATC wiring harness and lead connectors:

1. Set ATC control to Off mode, then remove the ATC control.
2. Measure voltage at ATC control connector pin 4. 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 4 and PVM pin 6. If continuity exists, replace PVM. If continuity does not exist, repair circuit and recheck system.