Passive Anti-Theft Systems (Pats)

INSTRUMENT CLUSTER (IC) DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC	Description	Action
B1213	Anti-Theft Number of Programmed Keys is Below Minimum	If DTCs B1600, B1601, B1602, B1681 or B2103 are present, they must be addressed first. If DTC B1213 is the only DTC present, PROGRAM additional keys. REFER to KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT . CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test.
B1342	ECU is Faulted	CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new instrument cluster (IC). REFER to INSTRUMENT CLUSTER (IC), MESSAGE CENTER, AND WARNING CHIMES article. RESET the parameters in the IC and the PCM. REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) PARAMETER RESET . PROGRAM the PATS keys into the IC. REFER to Key Programming Using Diagnostic Equipment . CYCLE the ignition. REPEAT the self-test.
B1600	PATS Ignition Key Transponder Signal is Not Received	No PATS key has been read by the IC. Go to PINPOINT TEST B .
B1601	PATS Received Incorrect Key-Code From Ignition Key Transponder	There is an unprogrammed PATS key. Go to PINPOINT TEST C .
B1602	PATS Received Invalid Format Of Key-Code From Ignition Key Transponder	Only a partial PATS key was read. Go to PINPOINT TEST D .
B1681	PATS Transceiver Module Signal is Not Received	The IC did not receive the PATS transceiver signal. Go to PINPOINT TEST E .
B2103	Antenna Not Connected	There has been a PATS transceiver antenna failure. Go to PINPOINT TEST A .
B2141	NVM Configuration Failure	There is no PCM ID stored in the IC. CARRY OUT a parameter reset of the IC and PCM, then CYCLE the ignition and make an attempt to start the vehicle. REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) PARAMETER RESET .
B2431	Transponder Programming Failed	If any other PATS DTCs are present, ADDRESS them first. If DTC B2431 is the only DTC present, there was a failure during key programming. PROGRAM the key again. REFER to SPARE KEY PROGRAMMING - USING DIAGNOSTIC EQUIPMENT . CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test.
U0100	Lost Communication With ECM/PCM	NOTE: If DTCs U0100 and U2510 are both present, address DTC U2510 first. Go to PINPOINT TEST G .
U2510	CAN - Invalid Data for Vehicle Security	CARRY OUT a parameter reset of the IC and the PCM and CYCLE the ignition 3-5 times, making an attempt to start the vehicle each key cycle. REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) PARAMETER RESET . CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test.
U2511	CAN - Data Mis-Match (Receive Data Does Not Match Expected)	NOTE: If DTCs U2510 and U2511 are both present, address DTC U2510 first. Go to Pinpoint Test G .
All other DTCs	-	REFER to MULTIFUNCTION ELECTRONIC MODULES article.

PCM DIAGNOSTIC TROUBLE CODES (DTC) LIST

DTC	Description	Action
P1260	Theft Detected, Vehicle Immobilized	If there are any PATS DTCs present, ADDRESS them first. This DTC may also indicate a controller area network (CAN) issue. Make sure to verify if there are any communication issues/DTCs with any modules. REFER to MODULE COMMUNICATIONS NETWORK article. If DTC P1260 is the only DTC present, there may be a power or ground concern with the PCM. REFER to the INTRODUCTION - GASOLINE MODELS article.
All other DTCs	-	REFER to the INTRODUCTION - GASOLINE MODELS article.