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Headlamp Control Module (HCM) DTC Chart

HEADLAMP CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST

DTC Description Action
B103C:11 Left Headlamp Control: Circuit Short To Ground GO to PINPOINT TEST AD .
B103C:15 Left Headlamp Control: Circuit Short To Battery or Open GO to PINPOINT TEST AD .
B103C:49 Left Headlamp Control: Internal Electronic Failure DIAGNOSE all other DTCs first. If no other DTCs are present, INSTALL a new Headlamp Control Module (HCM). REFER to HEADLAMP CONTROL MODULE (HCM) . CLEAR the DTCs. REPEAT the self-test.
B103C:98 Left Headlamp Control: Component or System Over Temperature INSTALL a new LH headlamp assembly. REFER to HEADLAMP ASSEMBLY . CLEAR the DTCs. REPEAT the self-test.
B103D:11 Right Headlamp Control: Circuit Short To Ground GO to PINPOINT TEST AE .
B103D:15 Right Headlamp Control: Circuit Short To Battery or Open GO to PINPOINT TEST AE .
B103D:49 Right Headlamp Control: Internal Electronic Failure DIAGNOSE all other DTCs first. If no other DTCs are present, INSTALL a new HCM  . REFER to HEADLAMP CONTROL MODULE (HCM) . CLEAR the DTCs. REPEAT the self-test.
B103D:98 Right Headlamp Control: Component or System Over Temperature INSTALL a new RH headlamp assembly. REFER to HEADLAMP ASSEMBLY . CLEAR the DTCs. REPEAT the self-test.
U0100:00 Lost Communication With ECM  /PCM "A": No Sub Type Information GO to PINPOINT TEST AA .
U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module: No Sub Type Information GO to PINPOINT TEST AB .
U0155:00 Lost Communication With Instrument Panel Cluster (IPC  ) Control Module: No Sub Type Information GO to PINPOINT TEST AC .
U0401:00 Invalid Data Received from ECM  /PCM A: No Sub Type Information DTC U0401:00 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES .
U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module: No Sub Type Information DTC U0415:00 is set when a module receives invalid network data from another module with a faulted input. RETRIEVE and REPAIR all non-network DTCs in the other modules on the network. REFER to MULTIFUNCTION ELECTRONIC MODULES .
U3000:41 Control Module: General Checksum Failure INSTALL a new HCM  . REFER to HEADLAMP CONTROL MODULE (HCM) . CLEAR the DTCs. REPEAT the self-test.
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