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Home >> Pontiac >> 2005 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 90 (Cruise Control System) >> Diagnostic Information and Procedures >> DTC P0564 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2004 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to SIR Caution in Cautions and Notices.

Disable the inflatable restraint steering wheel module when performing this diagnostic table. Refer to SIR Disabling and Enabling Zone 3 in SIR.

The cruise control switch is an input to the powertrain control module (PCM). The PCM monitors the cruise control set/coast and resume/accelerate switch signal circuit in order to detect when a cruise control function has been requested. The PCM detects a specific voltage signal on the cruise control set/coast and resume/accelerate switch signal circuit when a cruise control function switch is activated, with each switch having a different predetermined voltage value.

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