Cc2, Code 34 - Cruise Control Servo Check

With tester connected, connect a voltmeter to Tan/Red wire of cruise control servo harness connector. Connect other voltmeter lead to ground. Put system in ATM Test "08". Turn cruise control switch to "ON" position. If voltmeter is pulsating between 0-12 volts, go to next step. If voltmeter reads battery voltage, go to step 5). If voltmeter reads between 0-1 volt, go to step 6)

Fig 1: Voltmeter Connection to Cruise Control Servo
Turn ignition off. Connect a voltmeter between Light Green/Red wire at cruise contro servo harness connector and ground. Turn ignition on. Turn cruise control on. If voltmeter reads battery voltage, go to next step. If voltmeter reads between 0-1 volt, go to step 4).
Turn ignition off. Disconnect 60-pin connector from SMEC. Connect a voltmeter between Light Green/Red wire in cavity No. 60 and ground. Turn ignition on. If voltmeter reads within one volt of battery voltage, replace SMEC for a bad logic board. Before replacing SMEC, ensure terminal in cavity No. 60 of 60-pin connector is not damaged causing a poor connection. If voltmeter reads between 0-1 volt, repair wire in cavity No. 60 for an open circuit to cruise control servo connector.

Fig 2: Voltmeter Connection to No. 60 of 60-Pin Connector
With voltmeter connected as in step 2), disconnect 60-pin connector from SMEC. Turn ignition on. If voltmeter reads battery voltage, replace SMEC for a bad logic board. If voltmeter reads between 0-1 volt, repair Light Green/Red wire of cavity No. 60 for a short to ground from the SMEC to cruise control servo connector.
Turn ignition off. Disconnect 60-pin connector from SMEC. Connect a voltmeter between Tan/Red wire in cavity No. 53 and ground. Turn ignition on. If voltmeter reads battery voltage, replace SMEC for a bad logic board. Before replacing SMEC, ensure cavity No. 53 of 60 pin connector is not damaged causing a poor connection. If voltmeter reads zero volts, repair Tan/Red wire of cavity No. 53 for an open circuit to cruise control servo connector.

Fig 3: Voltmeter Connection to No. 53 of 60-Pin Connector
With voltmeter connected as in step 1), disconnect 60-pin connector from SMEC. Turn ignition on. If voltmeter reads battery voltage, replace SMEC for a bad logic board. If voltmeter reads between 0-1 volt, go to next step.

Fig 4: Voltmeter Connection to Cruise Control Servo
With cruise control switch in "ON" position, turn ignition off. Connect a voltmeter between Dark Blue/Red wire of cruise control servo connector and ground. Turn ignition on. If voltmeter reads battery voltage, replace cruise control servo. If voltmeter still reads between 0-1 volt, go to next step.
With cruise control and ignition on. Connect a voltmeter between Dark Blue/Red wire of brake switch harness connector and ground. If voltmeter reads battery voltage, repair Dark Blue/Red wire for an open circuit to cruise control servo. If voltmeter still reads between 0-1 volt, go to next step.

Fig 5: Voltmeter Connection to Brake Switch Harness Connector
Connect a voltmeter between Yellow/Red wire of brake switch harness connector and ground. If voltmeter reads battery voltage, check brake switch adjustment. If brake switch adjustment is okay, replace brake switch. If voltmeter reads zero volts, repair Yellow/Red wire for an open circuit to wiring harness splice. Make sure fuse for Yellow/Red wire is not blown.