DTC Index (B, P, U Codes - With Testing): U-Codes

DTC	System	Description	Possible Source	Action
U1003 (PATS)	Module Communications Network	Standard Corporate Protocol (SCP) key status message; incorrect discrete identification number	Instrument cluster configuration error BPM SCP key status error	Reconfigure the IC, reprogram the keys
U1041 (CATS)	Module Communications Network	Vehicle speed signal from IC invalid	Vehicle speed circuit between IC and ADCM; open circuit, short circuit to ground, short circuit to B+, high resistance IC CAN network fault	For speed circuit tests, refer to Pinpoint Test J .. For open circuit tests, refer to Pinpoint Test A .. For short circuit tests, refer to Pinpoint Test B ..
U1041 (BPM)	Module Communications Network	Vehicle speed SCP message invalid	IC to BPM SCP circuit; open circuit, short circuit to B+, short circuit to ground IC CAN network fault SCP network fault	For IC to BPM circuit tests, refer to Pinpoint Test K .. For CAN circuit tests, refer to Pinpoint Test A .. refer to Pinpoint Test B .. For SCP network tests, refer to Pinpoint Test C ..
U1041 (DDCM)	Module Communications Network	Vehicle speed SCP message invalid	IC to DDCM SCP circuit; open circuit, short circuit to B+, short circuit to ground IC CAN network fault SCP network fault	For IC to DDCM circuit tests, refer to Pinpoint Test L .. For CAN circuit tests, refer to Pinpoint Test A .. refer to Pinpoint Test B .. For SCP network tests, refer to Pinpoint Test C ..
U1041 (SLCM)	Module Communications Network	Vehicle speed SCP message invalid	IC to SLCM SCP circuit; open circuit, short circuit to B+, short circuit to ground IC CAN network fault SCP network fault	For IC to SLCM circuit tests, refer to Pinpoint Test M .. For CAN circuit tests, refer to Pinpoint Test A .. Refer to Pinpoint Test B .. For SCP network tests, refer to Pinpoint Test C ..
U1135 (DDCM)	Module Communications Network	Ignition status (ignition switch position) not obtained	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1135 (DSCM)	Module Communications Network	Ignition status (ignition switch position) not obtained	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1135 (PDCM)	Module Communications Network	Ignition status (ignition switch position) not obtained	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1135 (PSCM)	Module Communications Network	Ignition status (ignition switch position) not obtained	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1135 (SLCM)	Module Communications Network	Ignition status (ignition switch position) not obtained	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1147 (PATS)	Module Communications Network	SCP key status message missing	Ignition switch to BPM switched ground circuit(s) fault BPM SCP key status error BPM SCP network fault SCP network fault	For ignition switched ground tests, refer to Pinpoint Test N .. For SCP network tests, refer to Pinpoint Test C ..
U1236 (A/CCM)	Module Communications Network	Control panel to A/CCM serial communication circuit fault	Control panel to A/CCM serial communication data input circuit; open circuit, short circuit to ground, short circuit to B+, high resistance Control panel failure	For data circuit tests, refer to Pinpoint Test O ..
U1260 (IC)	Module Communications Network	SCP + circuit failure	SCP + circuit; open circuit, short circuit to B +, short circuit to ground	For SCP network tests, refer to Pinpoint Test C ..
U1261 (IC)	Module Communications Network	SCP - circuit failure	SCP - circuit; open circuit, short circuit to B +, short circuit to ground	For SCP network tests, refer to Pinpoint Test C ..
U1262 (DHRCM)	Module Communications Network	SCP network circuit fault (ignition status [ignition switch position] periodically not obtained)	SCP network circuit; open circuit, short circuit to B +, short circuit to ground BPM SCP failure SCP network fault	For SCP network tests, refer to Pinpoint Test C ..
U1262 (PHRCM)	Module Communications Network	SCP network circuit fault (ignition status [ignition switch position] periodically not obtained)	SCP network circuit; open circuit, short circuit to B +, short circuit to ground BPM SCP failure SCP network fault	For SCP network tests, refer to Pinpoint Test C ..
U1264 (A/CCM)	Module Communications Network	Control panel to A/CCM serial communication circuit fault	Control panel to A/CCM serial communication data output circuit; open circuit, short circuit to ground, short circuit to B +, high resistance Control panel failure	For data circuit tests, refer to Pinpoint Test O ..
U1900 (IC)	Module Communications Network	CAN communications fault	CAN circuit; open circuit, short circuit to B +, short circuit to ground IC internal, CAN fault CAN network fault	For open circuit tests, refer to Pinpoint Test A .. For short circuit tests, refer to Pinpoint Test B ..
U1909 (DSCCM)	Module Communications Network	Local CAN (steering angle sensor, yaw rate and lateral acceleration sensor) communication fault	Local CAN circuit; open circuit, short circuit to B +, short circuit to ground DSCCM internal local CAN fault Local CAN fault	For local CAN circuit tests, refer to Pinpoint Test P ..
U2012 (BPM)	Module Communications Network	Key transponder module message corrupt	KTM to BPM data circuit; open circuit, short circuit to B +, short circuit to ground, high resistance Key transponder module failure	For KTM to BPM circuit tests, refer to Pinpoint Test Q ..
U2012 (DSCCM)	Module Communications Network	CAN communication fault	CAN circuit; open circuit, short circuit to B +, short circuit to ground DSCCM internal CAN fault CAN fault	For open circuit tests, refer to Pinpoint Test A .. For short circuit tests, refer to Pinpoint Test B ..
U2202 (DSCCM)	Module Communications Network	CAN invalid configuration data received	ECM, TCM or DSCCM incorrectly configured	Reconfigure modules
U2510 (IC)	Module Communications Network	CAN challenge response error	Failed IC/ECM PATS challenge	Reconfigure the ECM and/or IC (incorrectly configured following replacement)
U2511 (IC)	Module Communications Network	Incorrect ECM CAN data received	"Engine start" remains disabled by ECM after receiving valid PATS data - ECM PATS error	Contact dealer technical support for advice on possible ECM failure
U2515 (DSCCM)	Module Communications Network	CAN adaptive speed control message missing	TCM CAN DTC flagged	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2515 (IC)	Module Communications Network	CAN adaptive speed control message missing	ASCCM CAN message missing	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2516 (ASCCM)	Module Communications Network	CAN TCM message missing	TCM CAN DTC flagged	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2520 (ASCCM)	Module Communications Network	CAN IC module missing	IC CAN circuit; open circuit, short circuit to B +, short circuit to ground IC CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2521 (ASCCM)	Module Communications Network	CAN DSCCM module missing	DSCCM CAN circuit; open circuit, short circuit to B +, short circuit to ground DSCCM CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2521 (IC)	Module Communications Network	CAN DSCCM message missing	DSCCM CAN DTC flagged	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2522 (ASCCM)	Module Communications Network	CAN TCM module missing	TCM CAN circuit; open circuit, short circuit to B +, short circuit to ground TCM CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2522 (DSCCM)	Module Communications Network	CAN TCM module missing	TCM CAN circuit; open circuit, short circuit to B +, short circuit to ground TCM CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2522 (IC)	Module Communications Network	CAN TCM message missing	TCM CAN DTC flagged	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2523 (ASCCM)	Module Communications Network	CAN ECM module missing	ECM CAN circuit; open circuit, short circuit to B +, short circuit to ground ECM CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2523 (DSCCM)	Module Communications Network	CAN ECM module missing	ECM CAN circuit; open circuit, short circuit to B +, short circuit to ground ECM CAN fault CAN fault	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2523 (IC)	Module Communications Network	CAN ECM message missing	ECM CAN DTC flagged	For CAN open circuit tests, refer to Pinpoint Test A .. For CAN short circuit tests, refer to Pinpoint Test B ..
U2527 (DSCCM)	Module Communications Network	Local CAN (steering angle sensor, yaw rate and lateral acceleration sensor) transmit fault	Local CAN circuit; open circuit, short circuit to B +, short circuit to ground DSCCM internal local CAN fault Local CAN fault	For local CAN circuit tests, refer to Pinpoint Test P ..