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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Description Perform Test
Cxxx Anti-Lock Brake Or Electronic Steering Controls (2)
P0502 Vehicle Speed Sensor Circuit (Low Input) (3)
P0503 Vehicle Speed Sensor Circuit (Intermittent) (3)
P0560 System Voltage (4)
P1554 Cruise Control Feedback Circuit DTC P1554
P1585 Cruise Inhibit Output Circuit DTC P1585
Pxxx Powertrain Control Module Fault (5)
(1) Codes listed in this table are only for testing covered in this article. For complete DTC listing, see BODY CONTROL MODULES - MONTANA, SILHOUETTE & VENTURE article.
(2) See appropriate ANTI-LOCK article in BRAKES.
(3) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
(4) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(5) For powertrain control module diagnostic trouble code descriptions and testing procedures, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
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