Inspection and Verification

Verify the customer concern by operating the speed control to duplicate the condition.
Verify the speedometer operates correctly without speed control by test driving the vehicle. If the speedometer does not operate correctly. REFER to INSTRUMENT CLUSTER .
Verify the stoplamps operate correctly with the ignition switch in the OFF position. If the stoplamps do not operate correctly. REFER to EXTERIOR LIGHTING .
Verify the parking brake is not applied and is operating correctly. If the parking brake is not operating correctly, refer to DISC .

Visually inspect for obvious signs of mechanical and electrical damage.

VISUAL INSPECTION CHART

Mechanical	Electrical
Speed control cable Throttle lever Speed control actuator	Central junction box (CJB) fuse 23 (15A) Battery junction box (BJB) fuse 40 (15A) BJB fuse 11 (40A) Circuitry

If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel, and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.
If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
Carry out the DATA LINK DIAGNOSTICS test. If the diagnostic tool responds with:
- CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to MODULE COMMUNICATIONS NETWORK .
- NO RESP/NOT EQUIP for PCM, go to PINPOINT TEST A .
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out the KOEO Test.
If the DTCs retrieved are related to the concern, go to the SPEED CONTROL ACTUATOR DIAGNOSTIC TROUBLE CODE (DTC) INDEX .
If no DTCs related to the concern are retrieved, proceed to the SYMPTOM CHART to continue diagnostics.

NOTE: DTC P0703 and DTC P1572 must be repaired before any other DTC.