Test Description

2007 Pontiac Wave LT, 4D Hatchback, Standard, Y4M/MLMSECTION Test Description
WARNING: This page is about a different car, the 2008 Suzuki Swift +, 2008 Pontiac Wave, and 2008 Chevrolet Aveo. 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. 2:  This step determines if condition is present.
Step Action Yes No
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Turn the cruise On/Off control switch ON.
  4. With the scan tool, observe the Cruise Resume/Accel. Switch parameter.
Does the Cruise Resume/Accel. Switch parameter display On?
Go to Step 3  Go to Diagnostic Aids
3
  1. Turn OFF the ignition.
  2. Disconnect the cruise control switch connector.
  3. Turn ON the ignition, with the engine OFF.
  4. With the scan tool, observe the Cruise Resume/Accel. Switch parameter.
Does the Cruise Resume/Accel. Switch parameter display On?
Go to Step 4  Go to Step 5 
4 Test the cruise control resume/accel switch signal circuit for a short to voltage.
Did you find and correct the condition?
Go to Step 9  Go to Step 6 
5 Inspect for poor connections at the harness connector of the cruise control switch. Refer to Testing for Intermittent Conditions and Poor Connections .
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
6 Inspect for poor connections at the harness connector of the engine control module (ECM). Refer to Testing for Intermittent Conditions and Poor Connections .
Did you find and correct the condition?
Go to Step 9  Go to Step 7 
7 Replace the ECM. Refer to:
Did you complete the replacement?
Go to Step 9  -
8 Replace the cruise control switch.
Did you complete the replacement?
Go to Step 9  -
9
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Setting the DTC.
Does the DTC reset?
Go to Step 2  System OK
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.