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Cruise Control Does Not Operate

CRUISE CONTROL DOES NOT OPERATE - DIAGNOSTIC PROCEDURE

Step Action Value(s) Yes No
1 Visually inspect the cruise control system and verify the following conditions:
  • The electrical connector is correctly attached to the cruise control actuator.
  • The actuator and the bracket are not loose.
  • The cable is not bent or kinked.
  • The cable adjuster is correctly attached to its bracket.
  • The cable and bushing are correctly attached to the accelerator assembly.
  • The cable is properly adjusted.

Have all of the above conditions been verified?		 - Go to Step 3 Go to Step 2
2 Make repairs to the components of the cruise control system that were faulty in Step 1.
Is the repair complete?		 - System OK -
3
  1. Connect a scan tool to the data link connector (DLC).
  2. Check for engine control diagnostic trouble codes (DTCs).

Is a vehicle speed sensor (VSS) DTC 720, DTC 721, or DTC 722 present?		 - Go to Step 5 Go to Step 4
4 Diagnose the VSS DTC or automatic transaxle DTCs.
After the VSS has been repaired, is the cruise control still inoperative?		 - Go to Step 5 System OK
5 Observe the brake lamps when the brakes are being applied.
Do the brake lamps turn ON when the brakes are applied and turn OFF when the brakes are not applied?		 - Go to Step 7 Go to Step 6
6 Repair the brake lamp system.
Does the cruise control operate after the brake lamp system has been repaired?		 - System OK Go to Step 7
7 Check fuses F11.
Is either fuse blown?		 - Go to Step 8 Go to Step 9
8
  1. Check for a short circuit and repair it, if necessary.
  2. Replace the blown fuse(s).

Is the repair complete?		 - System OK -
9
  1. Turn the ignition ON.
  2. Check the voltage at fuses F11.

Is the voltage equal to the specified value?		 11-14 V Go to Step 11 Go to Step 10
10 Repair the power supply to the fuse(s).
Is the repair complete?		 - System OK -
11
  1. Disconnect the electrical connector from the cruise control actuator.
  2. Turn the ignition ON.
  3. Check the voltage at terminal 3(H) of the cruise control actuator connector.

Is the voltage equal to the specified value?		 11-14 V Go to Step 13 Go to Step 12
12 Repair the open circuit between fuse F11 and cruise control actuator connector terminal 3(H).
Is the repair complete?		 - System OK -
13 With the electrical connector still removed from the cruise control actuator, use an ohmmeter to measure the resistance between cruise control actuator connector terminal 6(E) and ground.
Is the resistance equal to the specified value?		 0 Ω Go to Step 15 Go to Step 14
14 Repair the open circuit between ground and terminal 6(E) of the cruise control actuator connector.
Is the repair complete?		 - System OK -
15 With the electrical connector still removed from the cruise control actuator, use an ohmmeter to measure the resistance between connector terminal 8(C) and the brake switch terminal 4(J).
Is the resistance equal to the specified value?		 0 Ω Go to Step 17 Go to Step 16
16 Repair the open circuit between the cruise control actuator connector terminal 8(C) and the brake switch terminal 4(J).
Is the repair complete?		 - System OK -
17
  1. Turn the ignition ON.
  2. With the electrical connector still removed from the cruise control actuator, use a voltmeter to check the voltage at terminal 8(C) of the cruise control actuator connector when the brakes are being applied.

Is the voltage equal to the specified value?		 11-14 V Go to Step 19 Go to Step 18
18 Repair the open circuit between fuse Ef13 and terminal 8(C) of the cruise control actuator connector.
Is the repair complete?		 - System OK -
19
  1. Turn the ignition ON.
  2. Turn the cruise control switch OFF.
  3. With the electrical connector still removed from the cruise control actuator, use a voltmeter to check the voltage at terminal 9(B) of the connector.

Is the voltage equal to the specified value?		 0 Ω Go to Step 21 Go to Step 20
20 Repair the short to voltage between the cruise control main switch and the cruise control actuator connector terminal 9(B).
Is the repair complete?		 - System OK -
21
  1. Turn the ignition ON.
  2. Turn the cruise control switch ON.
  3. With the electrical connector still removed from the cruise control actuator, use a voltmeter to check the voltage at terminal 9(B) of the connector.

Is the voltage equal to the specified value?		 11-14 V Go to Step 23 Go to Step 22
22 Repair the open circuit between fuse Ef1 and the cruise control actuator terminal 9(B).
Is the repair complete?		 - System OK -
23
  1. Turn the ignition ON.
  2. Turn the cruise control switch ON.
  3. With the electrical connector still removed from the cruise control actuator, check the voltage at terminals 7(D) and 2(G) of the connector.

Is the voltage equal to the specified value?		 0 V Go to Step 26 Go to Step 24
24 Replace the cruise control switch.
Is the repair complete?		 - System OK -
25 Repair the short to voltage between the cruise control switch and the cruise control actuator connector.
Is the repair complete?		 - System OK -
26
  1. Turn the ignition ON.
  2. Turn the cruise control switch ON.
  3. Select SET on the cruise control switch.
  4. While holding the switch in the SET position, check the voltage at terminal 2(G) of the cruise control actuator connector.

Is the voltage equal to the specified value?		 11-14 V Go to Step 27 Go to Step 31
27
  1. Turn the ignition ON.
  2. Turn the cruise control switch ON.
  3. Select RESUME on the cruise control switch.
  4. While holding the switch in the RESUME position, check the voltage at terminal 7(D) of the cruise control actuator connector.

Is the voltage equal to the specified value?		 11-14 V Go to Step 28 Go to Step 31
28
  1. Turn the ignition OFF.
  2. Disconnect the VSS (A/T: TCM).
  3. Use an ohmmeter to check the continuity between the DK GRN/WHT wire at the VSS(A/T: TCM) and terminal 10(A) of the cruise control actuator connector.

Is the continuity equal to the specified value?		 0 Ω Go to Step 30 Go to Step 29
29 Repair the open circuit between the VSS(A/T: TCM) and the cruise control actuator connector terminal 10(A).
Is the repair complete?		 - System OK -
30 Replace the cruise control actuator connector.
Is the repair complete?		 - System OK -
31 Replace the cruise control switch.
Is the repair complete?		 - System OK -
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