Brad's Car Manuals: A 3rd party mirror of CHARM + LEMON car manuals
Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging System >> Self-Diagnostic System >> Diagnostic Trouble Code Definitions

Diagnostic Trouble Code Definitions

Download the full database via torrent (~1.1 TB)  |  Download Brad's custom LEMON patches
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Description
B1327  Battery/Source Voltage Low
P0562  Low System Voltage
P0563  High System Voltage
P0621  High Or Low Generator Turn On Signal
P0622  (2) Out Of Range Duty Cycle Signal
P1637  (2) High Or Low Generator Turn On Signal
P1638  (2) Out Of Range Duty Cycle Signal

(1) Codes listed in this table are only for testing covered in this article. For complete DTC listing, see appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
(2) On 4.3L Engines Only.