Step | Action | Value(s) | Yes | No | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Schematic Reference: Cruise Control Schematics DEFINITION: This table diagnoses the cruise control function is totally inoperative. It does not diagnose the CRUISE indicator or cruise switch indicator only are inoperative or that the overdrive cutoff is inoperative. | ||||||||||||||||
1 | Did you review the Cruise Control Description and Operation and perform the necessary inspections? | -- | Go to Step 2 | |||||||||||||
2 | Verify that the cruise control is inoperative. Does the cruise control system operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 | ||||||||||||
3 |
Is DTC P0500 or DTC P0121 stored in memory? | -- | Go to Step 4 | Go to Step 5 | ||||||||||||
4 | For DTC P0121:
For DTC P0500, refer to DTC P0500 in Automatic Transmission - 4 Speed-M41. Did you correct the condition? | -- | Go to Step 28 | -- | ||||||||||||
5 |
Did the servo lever turn approximately 1/3 revolution counterclockwise and return to its normal position when released? | -- | Go to Step 6 | Go to Step 27 | ||||||||||||
6 | With the cruise control servo lever in its normal position, attempt to rotate the lever in a clockwise direction. Did the lever rotate in a clockwise direction? | -- | Go to Step 27 | Go to Step 7 | ||||||||||||
7 |
Is the amount of play in the cruise control servo cable within tolerance? | -- | Go to Step 8 | Go to Step 26 | ||||||||||||
8 | With the cruise control servo connector still disconnected:
Did the test lamp illuminate? | -- | Go to Step 9 | Go to Step 20 | ||||||||||||
9 | With the cruise control servo connector still disconnected and the ignition ON:
Does the test lamp turn OFF when the brake pedal is depressed and turn ON when the brake pedal is released? | -- | Go to Step 10 | Go to Step 18 | ||||||||||||
10 | With the cruise control servo connector still disconnected:
Does the test lamp turn ON when the brake pedal is depressed and OFF when the brake pedal is released? | -- | Go to Step 11 | Go to Step 18 | ||||||||||||
11 | With the cruise control servo connector still disconnected and the ignition ON: Connect the test lamp between cavity 11 and cavity 12 of the cruise control servo connector. Does the test lamp illuminate? | -- | Go to Step 12 | Go to Step 22 | ||||||||||||
12 | With the cruise control servo connector still disconnected and the ignition ON:
Does the voltage measure near the specified value? | 12 V | Go to Step 13 | Go to Step 23 | ||||||||||||
13 | With the cruise control servo connector still disconnected, measure the resistance between cavity 5 and cavity 8 of the cruise control servo connector with the cruise control mode switch in the following positions:
Does the resistance measure near the specified values? |
| Go to Step 14 | Go to Step 24 | ||||||||||||
14 | Does the vehicle have an automatic transaxle? | -- | Go to Step 15 | Go to Step 16 | ||||||||||||
15 |
Did you measure an open condition? | -- | Go to Step 17 | Go to Step 25 | ||||||||||||
16 |
Did you measure an open condition? | -- | Go to Step 17 | Go to Step 25 | ||||||||||||
17 | Inspect for poor connections at the harness connector of the cruise control servo. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 27 | -- | ||||||||||||
18 | Inspect the stop lamp switch adjustment. Refer to Stop Lamp Switch Adjustment in Lighting Systems. Is the stop lamp switch in adjustment? | -- | Go to Step 20 | Go to Step 21 | ||||||||||||
19 | Adjust the stop lamp switch. Refer to Stop Lamp Switch Adjustment in Lighting Systems. Did you complete the adjustment? | -- | Go to Step 27 | -- | ||||||||||||
20 | Repair the open condition in the BLU/BLK wire between cavity 12 of the cruise control servo connector and cavity 2 of the main relay. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 28 | -- | ||||||||||||
21 | Repair the open or short to voltage condition in the stop lamp switch circuit between the cruise control servo and battery positive voltage. Refer to Wiring Repairs in Wiring Systems or Stop Lamp Switch Replacement in Lighting Systems. Did you complete the repair or replacement? | -- | Go to Step 28 | -- | ||||||||||||
22 | Repair the open in the BLK wire of the ground circuit between cavity 11 of the cruise control servo connector and ground. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | -- | Go to Step 28 | -- | ||||||||||||
23 | Repair the open in the battery positive voltage circuit between cavity 8 of the cruise control servo connector and battery positive voltage. Refer to Wiring Repairs in Wiring Systems or Cruise Control Switch Replacement . Did you complete the repair? | -- | Go to Step 28 | -- | ||||||||||||
24 | Repair the open or short to ground condition in the cruise control mode switch control circuit between cavity 5 and cavity 8 of the cruise control servo connector. Refer to Wiring Repairs in Wiring Systems or Inflatable Restraint Steering Wheel Module Coil Replacement in SIR. Did you complete the repair? | -- | Go to Step 28 | -- | ||||||||||||
25 | Repair the short to ground condition between cavity 9 of the cruise control servo connector and ground. Refer to Wiring Repairs in Wiring Systems, Transmission Range Switch Replacement in Automatic Transmission - 4 Speed-M41, or Cruise Control Release Switch Replacement . Did you complete the repair? | -- | Go to Step 28 | -- | ||||||||||||
26 | Adjust the amount of play in the cruise control servo cable. Refer to Cruise Control Cable Replacement for the specified adjustment. Did you adjust the cruise control cable within adjustment? | -- | Go to Step 28 | -- | ||||||||||||
27 | Replace the cruise control servo. Refer to Cruise Control Servo Replacement . Did you complete the replacement? | -- | Go to Step 28 | -- | ||||||||||||
28 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 | ||||||||||||
