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Diagnostic Aids Ensure that the resume/accel switch is not stuck or sticking in the engaged position. For an intermittent condition, refer to Testing for Intermittent Conditions and Poor Connections in Wiring Test Description The number below refers to the step number on the diagnostic table. 2: This step determines if condition is present. DTC P0567 Step Action Yes No Schematic Reference :Cruise Control Schematics 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 On/Off control switch ON. 4. With the scan tool, observe the Cruise Resume/Accel. Switch parameter in the PCM data list. Does the Cruise Resume/Accel. Switch parameter display On? Go to Step 3 Go to Diagnostic Aids 3 1. Turn the ignition OFF. 2. Disconnect the cruise control switch. 3. Turn the ignition ON, 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 Go to Step 9 Go to Step 6 5 Inspect for poor connections at the harness connector of the cruise Go to Step 9 Go to Step 8 Inspect for poor connections at the harness connector of the TAC
2004 Hummer H2 2004 ACCESSORIES & EQUIPMENT Cruise Control - Hummer H2
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