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Home >> Chevrolet >> 2006 >> SSR Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Cruise Control System) >> Diagnostic Information and Procedures >> Cruise Control Inoperative/Malfunctioning >> Test Description
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Test Description

WARNING: This page is about a different car, the 2006 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 6:  This step tests the ignition 1 voltage circuit for an open, for a short to ground, or for a high resistance.
Cruise Control Inoperative/Malfunctioning

Step Action Values Yes No
Schematic Reference: Cruise Control Schematics 
Connector End View Reference: Master Electrical Component List in Wiring Systems
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. With the scan tool, observe the Cruise Control Switch parameter in the Body and Accessories body control module (BCM) Data list.
Does the Cruise Control Switch parameter display Off?		 - Go to Step 3  Go to Step 7 
3
  1. Turn the cruise control On/Off switch ON.
  2. With the scan tool, observe the Cruise Control Switch parameter.
Does the Cruise Control Switch parameter display On?		 - Go to Step 4  Go to Step 6 
4
  1. Turn the cruise control on/off switch ON.
  2. With the scan tool, observe the Cruise Control Switch parameter.
  3. Press and hold the cruise control set/coast button.
Does the Cruise Control Switch parameter display Set?		 - Go to Step 5  Go to Step 8 
5
  1. With the scan tool, observe the Cruise Control Switch parameter.
  2. Press and hold the resume/accel switch.
Does the Cruise Control Switch parameter Display Resume?		 - Go to Diagnostic Aids Go to Step 8 
6 
  1. Turn OFF the ignition.
  2. Disconnect C1.
  3. Turn ON the ignition, 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 13 
7
IMPORTANT: The cruise control on/off switch must be turned ON in order to correctly view the set/coast switch resistance values with the DMM.
  1. Turn OFF the ignition.
  2. Disconnect C1.
  3. 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.
  4. Individually activate and hold the cruise control function switches while measuring the resistance value of each cruise control function switch.
Do the cruise control function switch resistance values measure between the specified values?		 Off = O.L.
On = 7.8 K-8.6 K
Resume = 2.7 K-3.0 K
Set = 1.2 K-1.3 K		 Go to Step 10  Go to Step 11 
8
IMPORTANT: The cruise control on/off switch must be turned ON in order to correctly view the set/coast switch resistance values with the DMM.
  1. Turn OFF the ignition.
  2. Disconnect C1.
  3. 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.
  4. Individually activate and hold the cruise control function switches while measuring the resistance value of each cruise control function switch.
Do the cruise control function switch resistance values measure between the specified values?		 Off = O.L.
On = 7.8 K-8.6 K
Resume = 2.7 K-3.0 K
Set = 1.2 K-1.3 K		 Go to Step 9  Go to Step 11 
9 Test the cruise control set/coast and resume/accel switch signal circuit for the following:
  • High resistance
  • Open
  • Short to ground
  • Short to voltage

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 16  Go to Step 12 
10 Test the cruise control set/coast and resume/accel 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 16  Go to Step 12 
11 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 16  Go to Step 14 
12 Inspect for poor connections at the harness connector of the BCM. Refer to Testing for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems.
Did you find and correct the condition?		 - Go to Step 16  Go to Step 15 
13 Repair the open, the high resistance, or the short to ground in the ignition 1 voltage circuit. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you complete the repair?		 - Go to Step 16  -
14 Replace the cruise control switch. Refer to Multifunction, Turn Signal Switch Replacement in Steering Wheel and Column.
Did you complete the replacement?		 - Go to Step 16  -
15 Replace the BCM. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.
Did you complete the replacement?		 - Go to Step 16  -
16 Operate the vehicle within the conditions for cruise control operation.
Does the cruise control system operate properly?		 - System OK Go to Step 2 
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