U1197

U1197-SECURITY SEED RESPONSE NOT RECEIVED FROM ECM/PCM

For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

Whenever a Fob Integrated Key (FOBIK) is inserted in the Wireless Ignition Node (WIN), the WIN performs a self test and resynchronization routine. During the routine, the WIN interrogates the FOBIK for the secret key information and performs a CAN Bus message handshake with the PCM to start the vehicle. The PCM must reply to the WIN that the secret key information matches to initiate the start sequence or this code will set on the 20th attempt.

- When Monitored:
Whenever a FOBIK is rotated to the Run position.

- Set Condition:
This DTC sets if the WIN does not receive a CAN Bus message from the ECM/PCM. This code will set on the 20th start attempt.





Always perform the WIN Pre-Diagnostic Troubleshooting procedure before proceeding. Wireless Ignition Node (WIN) Verification Test
VERIFY PCM PROGRAMMING
1. Use the scan tool and erase all codes in the ECM/PCM.
2. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
3. Wait one minute, and read active ECM/PCM codes.

Does the scan tool display this DTC as active?

Yes

- Program the Powertrain Control Module.
- Perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test

No

- Repair is complete.
- Perform the WIN VERIFICATION TEST. Wireless Ignition Node (WIN) Verification Test