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Makes 🢒 Saturn 🢒 2003 🢒 VUE - FWD 🢒 Body and Accessories 🢒 Cruise Control 🢒 Cruise Control Inoperative/Malfunctioning

Cruise Control Inoperative/Malfunctioning L61

Diagnostic Aids

Caution: Refer to SIR Caution in the Preface section.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to SIR Disabling and Enabling in SIR.

Perform the following in order to avoid misdiagnosis:

    • Inspect for proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation in Lighting Systems.
    • Inspect for proper operation of the clutch system, if equipped with manual transmission. Refer to Clutch System Description and Operation in Clutch.
    • Observe the cruise set/coast and cruise resume/accel parameters in the scan tool ECM General Info Inputs data list while rotating the steering wheel to both stops and pressing and holding the steering wheel control switches. This will eliminate the possibility of a internally open or shorted inflatable restraint steering wheel module coil.

EMI on the speed sensor signal circuit may cause erratic cruise control operation.

For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Conditions for Enabling Cruise Control
    • The vehicle speed is greater than 40 km/h (25 mph).
    • The vehicle is not in PARK, REVERSE, NEUTRAL, or 1st gear.
    • The system voltage is between 12 volts and 16 volts.

Step

Action

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Connector End Views or Engine Control Module Connector End Views in Engine Controls-2.2 L (L61)

1

Did you perform the Cruise Control Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Cruise Control

2
  1. Install a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. Turn the cruise control On/Off switch OFF.
  4. With the scan tool, observe the Cruise Switch parameter in the ECM General Info -- Inputs data list.

Does the cruise switch parameter display Off?

Go to Step 3

Go to Step 6

3
  1. With the scan tool, observe the cruise switch parameter.
  2. Turn the cruise On/Off switch ON.

Does the cruise switch parameter display On?

Go to Step 4

Go to Step 7

4
  1. With the scan tool, observe the cruise set/coast parameter.
  2. press and hold the Set/Coast switch.

Does the cruise set/coast parameter display On?

Go to Step 5

Go to Step 9

5
  1. With the scan tool, observe the cruise resume/accel parameter.
  2. press and hold the resume/accel switch.

Does the cruise resume/accel parameter display On?

Go to Diagnostic Aids

Go to Step 10

6
  1. Turn the ignition OFF.
  2. Disconnect the cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Observe the cruise switch parameter.

Does the cruise switch parameter display Off?

Go to Step 13

Go to Step 11

7
  1. Turn the ignition OFF.
  2. Disconnect cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Connect a test lamp between the ignition 1 voltage circuit and a good ground.

Does the test lamp illuminate?

Go to Step 8

Go to Step 15

8
  1. Connect a 3 ampere fused jumper between the ignition 1 voltage circuit and the cruise control on switch signal circuit.
  2. With the scan tool, observe the cruise switch parameter.

Does the cruise switch parameter display On?

Go to Step 13

Go to Step 12

9

Test the cruise control set/coast switch signal circuit for a short to ground, for an open, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 13

10

Test the cruise control resume/accel switch signal circuit for a short to ground, for an open, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 13

11

Test the cruise control on switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 14

12

Test the cruise control on switch signal circuit for an open, for a short to ground, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 14

13

Inspect for poor connections at the harness connector of the cruise control switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 16

14

Inspect for poor connections at the harness connector of the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 18

Go to Step 17

15

Repair the short to ground, the open, or the high resistance in the ignition 1 voltage circuit. Refer to Wiring Repairs Wiring Systems.

Did you complete the repair?

Go to Step 18

--

16

Replace the cruise control switch. Refer to Cruise Control Switch Replacement .

Did you complete the replacement?

Go to Step 18

--

17

Important: Program the replacement ECM.

Replace the ECM. Refer to Engine Control Module Replacement in Engine Controls - 2.2 L.

Did you complete the replacement?

Go to Step 18

--

18
  1. Enable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling in SIR.
  2. Operate the vehicle with in the conditions for cruise control operation.

Does the cruise control system operate properly?

System OK

Go to Step 2

Cruise Control Inoperative/Malfunctioning L81

Diagnostic Aids

Caution: Refer to SIR Caution in the Preface section.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to SIR Disabling and Enabling in SIR.

Perform the following in order to avoid misdiagnosis:

    • Inspect for proper adjustment of the stop lamp switch. Refer to Stop Lamp Switch Adjustment in Lighting Systems.
    • Inspect for proper adjustment of the cruise control release switch. Refer to Cruise Release Switch Adjustment .
    • Inspect for proper operation of the stop lamps. Refer to Exterior Lighting Systems Description and Operation in Lighting Systems.
    • Observe the Cruise Set/Coast and Cruise Resume/Accel parameters in the scan tool ECM General Info -- Inputs data list while rotating the steering wheel to both steering stops and pressing and holding the steering wheel control switches. This will eliminate the possibility of a internally open or shorted inflatable restraint steering wheel module coil.
    • Ensure that the set/coast switch or the resume/accel switch are not stuck in the engaged position.
    • Electro magnetic interference on the vehicle speed sensor signal circuit may cause erratic cruise control operation.

For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Conditions for Enabling Cruise Control
    • The vehicle speed is greater than 40 km/h (25 mph).
    • The vehicle is not in PARK, REVERSE, NEUTRAL, or 1st gear.
    • The system voltage is between 12 volts and 16 volts.

Step

Action

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Connector End Views , Lighting Systems Connector End Views in Lighting Systems, or Engine Control Module Connector End Views in Engine Controls-3.0 L (L81)

1

Did you perform the Cruise Control Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Cruise Control

2
  1. Install a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. Turn the cruise control On/Off switch OFF.
  4. With the scan tool, observe the Cruise Switch parameter in the ECM General Info -- Inputs data list.

Does the Cruise Switch parameter display Off?

Go to Step 3

Go to Step 13

3
  1. With the scan tool, observe the Cruise Switch parameter.
  2. Turn the cruise On/Off switch ON.

Does the Cruise Switch parameter display On?

Go to Step 4

Go to Step 14

4
  1. With the scan tool, observe the Cruise Set/Coast parameter in the ECM General Info -- Inputs data list.
  2. Turn the cruise On/Off switch ON.

Does the Cruise Set/Coast parameter display On?

Go to Step 15

Go to Step 5

5
  1. With the scan tool, observe the Cruise Set/Coast parameter.
  2. Press and hold the set/coast switch.

Does the Cruise Set/Coast parameter display On?

Go to Step 6

Go to Step 20

6
  1. With the scan tool, observe the Cruise Resume/Accel parameter in the ECM General Info -- Inputs data list.
  2. Turn the cruise On/Off switch ON.

Does the Cruise Resume/Accel parameter display On?

Go to Step 16

Go to Step 7

7
  1. With the scan tool, observe the Cruise Resume/Accel parameter.
  2. Press and hold the resume/accel switch.

Does the Cruise Resume/Accel parameter display On?

Go to Step 8

Go to Step 21

8

With the scan tool, observe the Cruise Brake Switch parameter in the ECM General Info -- Inputs data list.

Does the Cruise Brake Switch parameter display released?

Go to Step 9

Go to Step 12

9
  1. With the scan tool, observe the Cruise Brake Switch parameter.
  2. Press and hold the brake pedal.

Does the Cruise Brake Switch parameter display Applied?

Go to Step 10

Go to Step 11

10
  1. With the scan tool, observe the Brake Switch parameter in the ECM General Info -- Inputs data list.
  2. Press and hold the brake pedal.

Does the Cruise Brake Switch parameter display Applied?

Go To Diagnostic Aids

Go to Step 26

11
  1. Turn the ignition OFF.
  2. Disconnect the cruise/brake switch.
  3. With the scan tool, observe the Cruise Brake Switch parameter.

Does the Cruise Brake Switch parameter display Applied?

Go to Step 29

Go to Step 24

12
  1. Turn the ignition OFF.
  2. Disconnect the cruise/brake switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Connect a test lamp between the ignition 1 voltage circuit and a good ground.

Does the test lamp illuminate?

Go to Step 25

Go to Step 30

13
  1. Turn the ignition OFF.
  2. Disconnect the cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Observe the Cruise Switch parameter.

Does the Cruise Switch parameter display Off?

Go to Step 27

Go to Step 22

14
  1. Turn the ignition OFF.
  2. Disconnect cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Connect a test lamp between the ignition 1 voltage circuit and a good ground.

Does the test lamp illuminate?

Go to Step 17

Go to Step 30

15
  1. Turn the ignition OFF.
  2. Disconnect the cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Observe the Cruise Set/Coast parameter.

Does the Cruise Set/Coast parameter display Off?

Go to Step 27

Go to Step 18

16
  1. Turn the ignition OFF.
  2. Disconnect the cruise switch.
  3. Turn the ignition ON, with the engine OFF.
  4. Observe the Cruise Resume/Accel parameter.

Does the Cruise Resume/Accel parameter display Off?

Go to Step 27

Go to Step 19

17
  1. Connect a 3 ampere fused jumper between the ignition 1 voltage circuit and the cruise control on switch signal circuit.
  2. With the scan tool, observe the Cruise Switch parameter.

Does the Cruise Switch parameter display On?

Go to Step 27

Go to Step 23

18

Test the cruise control set/coast switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

19

Test the cruise control resume/accel switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

20

Test the cruise control set/coast switch signal circuit for a short to ground, for an open, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 27

21

Test the cruise control resume/accel switch signal circuit for a short to ground, for an open, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 27

22

Test the cruise control on switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

23

Test the cruise control on switch signal circuit for an open, for a short to ground, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

24

Test the cruise/brake switch signal circuit for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

25

Test the cruise/brake switch signal circuit for an open, for a short to ground, or for a high resistance. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 29

26

Test the stop lamp switch signal circuit for an open, for a short to ground, or for a high resistance between S200. and the ECM. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 28

27

Inspect for poor connections at the harness connector of the cruise control switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 31

28

Inspect for poor connections at the harness connector of the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 33

29

Inspect for poor connections at the harness connector of the cruise/brake switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 34

Go to Step 32

30

Repair the short to ground, the open, or the high resistance in the ignition 1 voltage circuit. Refer to Wiring Repairs Wiring Systems.

Did you complete the repair?

Go to Step 34

--

31

Replace the cruise control switch. Refer to Cruise Control Switch Replacement .

Did you complete the replacement?

Go to Step 34

--

32

Replace the cruise/brake switch. Refer to Cruise Control Release Switch Replacement .

Did you complete the replacement?

Go to Step 34

--

33

Important: Program the replacement ECM.

Replace the ECM. Refer to Engine Control Module Replacement in Engine Controls - 3.0 L.

Did you complete the replacement?

Go to Step 34

--

34
  1. Enable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling in SIR
  2. Operate the vehicle with in the conditions for cruise control operation.

Does the cruise control system operate properly?

System OK

Go to Step 2