Pinpoint Test G: DTCs B10DA:86, P1602 and/or U0100:00
Anti-Theft
Pinpoint Test G: DTCs B10DA:86, P1602 and/or U0100:00
Normal Operation
During each vehicle start sequence, when the key is turned to the START or ON position, the Passive Anti-Theft System (PATS) transceiver reads the PATS (Passive Anti-Theft System) key identification code and sends the data to the Instrument Panel Cluster (IPC). If there is no communication on the High Speed Controller Area Network (HS-CAN) between the IPC (Instrument Panel Cluster) and the PCM, DTCs B10DA:86 and/or U0100:00 can set in the IPC (Instrument Panel Cluster) and DTC P1602 will set in the PCM and the vehicle can experience a PATS (Passive Anti-Theft System) no-start.
- DTC B10DA:86 (PATS (Passive Anti-Theft System) PCM Identifier: Signal Invalid)- a continuous DTC that sets only when the IPC (Instrument Panel Cluster) does not receive the expected response from the PCM over the HS-CAN (High Speed Controller Area Network) and the fault may not be present at the time of testing. The data sent by the PCM does not match the data expected by the IPC (Instrument Panel Cluster) and this DTC is set. This DTC can be caused by the HS-CAN (High Speed Controller Area Network) circuits between the IPC (Instrument Panel Cluster) and the PCM or by either module. This DTC can also be set if the battery voltage is low.
- DTC P1602 (Immobilizer/ECM (Engine Control Module) Communication Error)- a continuous DTC that sets when there is a loss of communication on the HS-CAN (High Speed Controller Area Network) circuitry between the PCM and the IPC (Instrument Panel Cluster).
- DTC U0100:00 (Lost Communication With ECM (Engine Control Module) /PCM "A": No Sub Type Information)- a continuous DTC that sets only when the IPC (Instrument Panel Cluster) loses communication with the PCM and the fault may not be present at the time of testing. This DTC can be caused by an HS-CAN (High Speed Controller Area Network) circuit concern or the IPC (Instrument Panel Cluster) or PCM.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Low battery state of charge
- IPC (Instrument Panel Cluster)
- PCM
PINPOINT TEST G : DTCs B10DA:86, P1602 AND/OR U0100:00
G1 CHECK FOR DTC B10DA:61
- Carry out the IPC (Instrument Panel Cluster) self-test.
Is DTC B10DA:61 present?
Yes
CARRY OUT a parameter reset. REFER to Passive Anti-Theft System (PATS) Parameter Reset Passive Anti-Theft System (PATS) Passive Anti-Theft System (PATS) Parameter Reset. CLEAR the DTCs. CYCLE the ignition 3-5 times, making an attempt to start the vehicle each key cycle. REPEAT the self-test.
No
GO to G2.
G2 CHECK THE BATTERY STATE OF CHARGE
- Ignition OFF.
- Check the battery state of charge with the battery condition test.
Does the battery pass the battery condition test?
Yes
GO to G3.
No
INSTALL a new battery. TEST the system for normal operation.
G3 CHECK FOR MODULE COMMUNICATION ON THE HS-CAN (High Speed Controller Area Network)
- Connect the scan tool.
- Ignition ON.
- Carry out the network test using the scan tool.
Is the scan tool unable to communicate with any of the modules on the HS-CAN (High Speed Controller Area Network)?
Yes
REFER to Information Bus to diagnose the module that is not communicating with the scan tool.
No
GO to G4.
G4 INSPECT THE HS-CAN (High Speed Controller Area Network) CIRCUITRY
- Ignition OFF.
- Inspect all of the HS-CAN (High Speed Controller Area Network) circuitry, including the pin crimps, connector fit, corroded/bent/pushed-out/damaged pins and splice integrity in the splices and connections between the PCM and the IPC (Instrument Panel Cluster). Refer to the Wiring Diagrams Electrical Diagrams.
Does the HS-CAN (High Speed Controller Area Network) circuitry pass the component inspection?
Yes
GO to G5.
No
REPAIR the HS-CAN (High Speed Controller Area Network) circuitry as necessary. CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.
G5 CHECK FOR CORRECT PCM OPERATION
- Disconnect all the PCM connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the PCM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new PCM. RESET the parameters in both the IPC (Instrument Panel Cluster) and the PCM.
REFER to Passive Anti-Theft System (PATS) Parameter Reset Passive Anti-Theft System (PATS) Passive Anti-Theft System (PATS) Parameter Reset. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation. If the concern is still present, GO to G6.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.
G6 CHECK FOR CORRECT IPC (Instrument Panel Cluster) OPERATION
- Disconnect the IPC (Instrument Panel Cluster) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the IPC (Instrument Panel Cluster) connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new IPC (Instrument Panel Cluster). RESET the parameters in both the IPC (Instrument Panel Cluster) and the PCM. REFER to Passive Anti-Theft System (PATS) Parameter Reset Passive Anti-Theft System (PATS) Passive Anti-Theft System (PATS) Parameter Reset. PROGRAM the PATS (Passive Anti-Theft System) keys into the new IPC (Instrument Panel Cluster). REFER to Key Programming Using Diagnostic Equipment Passive Anti-Theft System (PATS) Key Programming Using Diagnostic Equipment. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.