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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Description
B1327  Battery/Source Voltage
B1328  Device Power Circuit High
P0562  Low System Voltage
P0563  High System Voltage
P0615  Improper Voltage Level On The Output Circuit That Controls The Starter Relay
P0622  Pulse Width Modulation Signal Out Of Range
P1637  Generator Turn-On Signal Circuit Voltage Out Of Range
P1638  Pulse Width Modulation Signal Out Of Range
(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.
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