Mechanics

CHEVY HOW TO REPAIR CRUISE CONTROL

2005 Chevrolet Impala

Engine Performance problem
2005 Chevy Impala 6 cyl Front Wheel Drive Automatic 89500 miles

Is the cruise control on the 2005 Chevy Impala a module that I can replace or is it more involved? If it is a module, where can I get the part number and about how much would it cost?
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Ang74
November 10, 2008.



It is way more copmplex than that. You will need a good scanner to diagnose it. First thing to do is check the switch. Does the light on the switch come on when you press the switch? Does it stay on?

Dennyp
Nov 13, 2008.
Dennyp, thanks for responding. The light on the dash does not come on. I press the button on the steering wheel, but nothing happens. WDYT?

Tiny
Ang74
Nov 13, 2008.
Is there a small light in the steering wheel switch? If so, it should light up when you press the switch. Does it feel like the switch clicks and stays down when you press it?

Dennyp
Nov 13, 2008.
I don't believe there is a light and the switch clicks, but doesn't stay down, but I don't think it ever did. I will check out the light and get back to you. Thanks.

Tiny
Ang74
Nov 13, 2008.
XTooltipElement
Service Information
2005 Chevrolet Impala | Impala, Monte Carlo (VIN W) Service Manual | Document ID: 1441773

Cruise Control Inoperative/Malfunctioning
Diagnostic Aids
To avoid misdiagnosis, inspect for the following:

• Proper operation of the brake lamps. Refer to Exterior Lighting Systems Description and Operation in Lighting Systems.

• The throttle linkage is not binding.

• The cruise control release switch is adjusted properly. Refer to Cruise Release Switch Adjustment .

• The stop lamp switch is adjusted properly. Refer to Stop Lamp Switch Adjustment in Lighting Systems.

• When testing vehicles equipped with steering wheel controls, the steering wheel must be rotated to each stop position while testing the cruise control signal circuits. This will assure the integrity of the (SIR) coil.

Step
Action
Values
Yes
No

Schematic Reference: Cruise Control Schematics

1
Did you perform the Diagnostic System Check - Vehicle?
--
Go to Step 2
Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2
Raise the vehicles drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
Start the engine.
Place the transmission into drive.
Observe the speedometer in the instrument panel cluster (IPC).
Does the speedometer operate properly?
--
Go to Step 3
Go to Speedometer and/or Odometer Inaccurate or Inoperative in Instrument Panel, Gages, and Console

3
Turn the ignition OFF.
Disconnect the cruise control module.
Turn the ignition ON, with the engine OFF.
Connect a test lamp between the ground circuit of the cruise control module and battery voltage.
Does the test lamp illuminate?
--
Go to Step 4
Go to Step 27

4
Turn the cruise control on/off switch OFF.
Connect a test lamp between a good ground and each of the following circuits:
• The cruise control on switch signal circuit

• The cruise control set/coast switch signal circuit

• The cruise control resume/accel switch signal circuit

Does the test lamp illuminate for any of the signal circuits listed above?
--
Go to Step 12
Go to Step 5

5
Turn the cruise control on/off switch ON.
Connect a test lamp between the cruise control on switch signal circuit and a good ground.
Does the test lamp illuminate?
--
Go to Step 6
Go to Step 13

6
Connect a test lamp between the cruise control set/coast switch signal circuit and a good ground.
Press the set/coast switch.
Does the test lamp illuminate?
--
Go to Step 7
Go to Step 15

7
Connect a test lamp between the cruise control resume/accel switch signal circuit and a good ground.
Press the resume/accel switch.
Does the test lamp illuminate?
--
Go to Step 8
Go to Step 16

8
Connect a test lamp between the cruise control release signal circuit and a good ground.

Does the test lamp illuminate?
--
Go to Step 9
Go to Step 17

9
Apply the brake pedal.

Does the test lamp remain illuminated?
--
Go to Step 19
Go to Step 10

10
Measure the voltage at the cruise control engaged circuit.

Does the voltage measure near the specified value?
B+
Go to Step 11
Go to Step 21

11
Do the stop lamps operate properly?
--
Go to Step 20
Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

12
Test the suspected 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 32
Go to Step 25

13
Test the cruise control on switch signal circuit for an open, for a high resistance, or for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 14

14
Test the ignition 3 voltage circuit of the cruise control switch for an open, for a short to ground, or for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 25

15
Test the cruise control set/coast switch signal circuit for an open, for a high resistance, or for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 25

16
Test the cruise control resume/accel switch signal circuit for an open, for a high resistance, or for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 25

17
Test the cruise control release switch signal circuit for an open, for a short to ground, or for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 18

18
Test the ignition 3 voltage circuit of the cruise control release switch for an open, for a short to ground, or for high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 23

19
Test the cruise control release 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 32
Go to Step 23

20
Test the stop lamp switch signal circuit of the cruise control module for an open or a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 26

21
Test the cruise control engaged signal circuit for an open, for a high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 22

22
Test the vehicle speed signal circuit for an open or for a high resistance between the cruise control module and S217. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?
--
Go to Step 32
Go to Step 23

23
Inspect for poor connections at the harness connector of the cruise control release 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 32
Go to Step 28

24
Inspect for poor connections at the harness connector of the powertrain control module (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 32
Go to Step 29

25
Inspect for poor connections at the harness connector of the turn signal/multifunction lever (Monte Carlo) or of the steering wheel control switch assembly (Impala). 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 32
Go to Step 30

26
Inspect for poor connections at the harness connector of the cruise control module. 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 32
Go to Step 31

27
Repair the open in the ground circuit of the cruise control module. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?
--
Go to Step 32
--

28
Replace the cruise control release switch. Refer to Cruise Control Release Switch Replacement .

Did you complete the replacement and the adjustment?
--
Go to Step 32
--

29
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 32
--

30
Replace the turn signal/multifunction switch lever or the steering wheel control switch assembly. Refer to one of the following procedures:

• Turn Signal Multifunction Switch Replacement in Steering Wheel and Column

• Steering Wheel Control Switch Assembly Replacement in Steering Wheel and Column

Did you complete the replacement?
--
Go to Step 32
--

31
Replace the cruise control module. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Did you complete the replacement?
--
Go to Step 32
--

32
Operate the vehicle within the conditions for cruise control operation.

Does the cruise control system operate correctly?
--
System OK
Go to Step 2

© 2008 General Motors Corporation. All rights reserved.


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Dennyp
Nov 14, 2008.