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Makes 🢒 Saturn 🢒 2006 🢒 ION 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Cruise Control Inoperative/Malfunctioning

Cruise Control Inoperative/Malfunctioning 2.0L

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.

    • Ensure that the following cruise control switches are not stuck in the engaged position:
       - On/off switch
       - - SET switch
       - + RES switch
    • With a scan tool, observe the associated cruise control switch parameter in the Powertrain Cruise Control Data list, while rotating the steering wheel to both steering stops and separately activating each cruise control switch. This will help eliminate the possibility of an internally shorted inflatable restraint steering wheel module coil.
    • For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Step

Action

Values

Yes

No

Schematic Reference: Cruise Control Schematics

Connector End View Reference: Cruise Control Connector End Views or Powertrain Control Module Connector End Views in Engine Controls - 2.0L

1

Did you perform the Diagnostic System Check - Vehicle?

--

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Turn the cruise control On/Off switch OFF.
  4. With the scan tool, observe the following cruise control parameters in the Cruise Control Data list:
    5. • Cruise On/Off Switch
    • Cruise Resume/Accel Switch
    • Cruise Set/Coast Switch

Do all of the parameters listed above display Off?

--

Go to Step 3

Go to Step 6

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

Does the Cruise On/Off Switch parameter display On?

--

Go to Step 4

Go to Step 7

4
  1. With the scan tool, observe the Cruise Set/Coast Switch parameter.
  2. Press and hold the - SET switch.

Does the Cruise Set/Coast Switch parameter display On?

--

Go to Step 5

Go to Step 8

5
  1. With the scan tool, observe the Cruise Resume/Accel Switch parameter.
  2. Press and hold the + RES switch.

Does the Cruise Resume/Accel Switch parameter display On?

--

Go to Diagnostic Aids

Go to Step 8

6
  1. Turn OFF the ignition.
  2. Remove the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  3. Disconnect C4 of the cruise control switch.
  4. Turn ON the ignition, with the engine OFF.
  5. Observe the Cruise On/Off Switch parameter in the Cruise Control Data list.

Does the Cruise On/Off Switch parameter display Off?

--

Go to Step 9

Go to Step 14

7
  1. Turn OFF the ignition.
  2. Remove the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  3. Disconnect C4 of the cruise control switch.
  4. Turn ON the ignition, with the engine OFF.
  5. 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 18

8

Important: The cruise control on/off switch must be turned ON in order to correctly view the set/coast switch and the resume/accel switch resistance values with the DMM.

  1. Turn OFF the ignition.
  2. With a DMM, measure the resistance of the cruise control switch between the ignition 1 voltage circuit and the cruise control set/coast and resume/accelerate switch signal circuit.
  3. Individually activate and hold the cruise control function switches while measuring the resistance of the cruise control function switches.

Do the cruise control function switch resistance values measure between the specified values?

Off = O.L.

On = 7.8-8.6 K ohms

Resume = 2.7-3.0 K ohms

Set = 1.2-1.3 K ohms

Go to Step 15

Go to Step 11

9

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

Did you find and correct the condition?

--

Go to Step 21

Go to Step 10

10

Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C4 and the cruise control switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 16

11

Test the ignition 1 voltage circuit for an open or for a high resistance between C4 and the cruise control switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 12

12

Test the cruise control set/coast and resume/accelerate switch signal circuit between C4 and the cruise control switch for the following:

    • Open
    • Short to voltage
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 13

13

Test the cruise control on switch signal circuit for the following:

    • Open
    • Short to voltage
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

 

Go to Step 21

Go to Step 16

14

Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C4 and the powertrain control module (PCM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 17

15

Test the cruise control set/coast and resume/accelerate switch signal circuit for the following:

    • Open
    • Short to ground
    • Short to voltage
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 17

16

Inspect for poor connections at the harness connector of the cruise control switch. 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 21

Go to Step 19

17

Inspect for poor connections at the harness connector of the PCM. 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 21

Go to Step 20

18

Repair the following in the ignition 1 voltage circuit:

    • Open
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 21

--

19

Replace the cruise control switch. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column.

Did you complete the replacement?

--

Go to Step 21

--

20

Replace the PCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

--

Go to Step 21

--

21
  1. Install the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  2. Enable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling in SIR.
  3. 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 2.2L

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.

    • Ensure that the following cruise control switches are not stuck in the engaged position:
       - On/off switch
       - - SET switch
       - + RES switch
    • With a scan tool, observe the associated cruise control switch parameter in the Powertrain Cruise Control Data list, while rotating the steering wheel to both steering stops and separately activating each cruise control switch. This will help eliminate the possibility of an internally shorted inflatable restraint steering wheel module coil.
    • For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.

Step

Action

Values

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 - 2.2L

1

Did you perform the Diagnostic System Check - Vehicle?

--

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Turn the cruise control On/Off switch OFF.
  4. With the scan tool, observe the following cruise control parameters in the Cruise Control Data list:
    5. • Cruise On/Off Switch
    • Cruise Resume/Accel Switch
    • Cruise Set/Coast Switch

Do all of the parameters listed above display Off?

--

Go to Step 3

Go to Step 6

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

Does the Cruise On/Off Switch parameter display On?

--

Go to Step 4

Go to Step 7

4
  1. With the scan tool, observe the Cruise Set/Coast Switch parameter.
  2. Press and hold the - SET switch.

Does the Cruise Set/Coast Switch parameter display On?

--

Go to Step 5

Go to Step 8

5
  1. With the scan tool, observe the Cruise Resume/Accel Switch parameter.
  2. Press and hold the + RES switch.

Does the Cruise Resume/Accel Switch parameter display On?

--

Go to Diagnostic Aids

Go to Step 8

6
  1. Turn OFF the ignition.
  2. Remove the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  3. Disconnect C4 of the cruise control switch.
  4. Turn ON the ignition, with the engine OFF.
  5. Observe the Cruise On/Off Switch parameter in the Cruise Control Data list.

Does the Cruise On/Off Switch parameter display Off?

--

Go to Step 9

Go to Step 14

7
  1. Turn OFF the ignition.
  2. Remove the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  3. Disconnect C4 of the cruise control switch.
  4. Turn ON the ignition, with the engine OFF.
  5. 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 18

8

Important: The cruise control on/off switch must be turned ON in order to correctly view the set/coast switch and the resume/accel switch resistance values with the DMM.

  1. Turn OFF the ignition.
  2. With a DMM, measure the resistance of the cruise control switch between the ignition 1 voltage circuit and the cruise control set/coast and resume/accelerate switch signal circuit.
  3. Individually activate and hold the cruise control function switches while measuring the resistance of the cruise control function switches.

Do the cruise control function switch resistance values measure between the specified values?

Off = O.L.

On = 7.8-8.6 K ohms

Resume = 2.7-3.0 K ohms

Set = 1.2-1.3 K ohms

Go to Step 15

Go to Step 11

9

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

Did you find and correct the condition?

--

Go to Step 21

Go to Step 10

10

Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C4 and the cruise control switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 16

11

Test the ignition 1 voltage circuit for an open or for a high resistance between C4 and the cruise control switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 12

12

Test the cruise control set/coast and resume/accelerate switch signal circuit between C4 and the cruise control switch for the following:

    • Open
    • Short to voltage
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 13

13

Test the cruise control on switch signal circuit for the following:

    • Open
    • Short to voltage
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

 

Go to Step 21

Go to Step 16

14

Test the cruise control set/coast and resume/accelerate switch signal circuit for a short to voltage between C4 and the engine control module (ECM). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 17

15

Test the cruise control set/coast and resume/accelerate switch signal circuit for the following:

    • Open
    • Short to ground
    • Short to voltage
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 17

16

Inspect for poor connections at the harness connector of the cruise control switch. 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 21

Go to Step 19

17

Inspect for poor connections at the harness connector of the ECM. 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 21

Go to Step 20

18

Repair the following in the ignition 1 voltage circuit:

    • Open
    • Short to ground
    • High resistance

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 21

--

19

Replace the cruise control switch. Refer to Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column.

Did you complete the replacement?

--

Go to Step 21

--

20

Replace the ECM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?

--

Go to Step 21

--

21
  1. Install the inflatable steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement in SIR.
  2. Enable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling in SIR.
  3. Operate the vehicle with in the conditions for cruise control operation.

Does the cruise control system operate properly?

--

System OK

Go to Step 2