|
|
(1) Disconnect terminal #4 on the ATC control 21- way connector and retest the system. Removing this (2) If Diagnostic Trouble Code 4 reappears, replace control. (3) If code 4 does not reappear, the problem is a shorted actuator motor or a short to ground in circuit (4) Remove 21-way connector and check for conti- nuity from pin #4 to chassis ground. There should (5) Check resistance across pins #4 and #5, #4 and #6, and #4 and #15 of the 21-way connector for DIAGNOSTIC TROUBLE CODE 5—FRESH/ If both Diagnostic Trouble Codes 4 and 5 oc- cur simultaneously, do both procedures. There (1) Disconnect terminal #15 on the ATC control 21-way connector and retest the system. Removing (2) If Diagnostic Trouble Code 5 reappears, replace control. (3) If code 5 does not reappear, the problem is a shorted fresh/recirc door actuator motor. It could also (4) Remove 21-way connector and check for conti- nuity from pin #15 to chassis ground. There should (5) Check resistance across pins #15 and #4 of the 21-way connector for a shorted actuator motor. Resis- DIAGNOSTIC TROUBLE CODE (1) Disconnect the low pressure cut out switch and retest diagnostics. (2) If code 6 does not reappear, then the problem is in the A/C signal circuit C02. Check for wiring prob- (3) If code 6 does reappear, remove the 21-way con- nector from the control and check for a short between Fig. 5 Pin outs for 6-Way Connector In-Car Sensor and Sun Sensor 24 - 78 HEATING AND AIR CONDITIONING Ä |