B1A77

B1A77 - Remote Start Antenna Circuit Low

For a complete wiring diagram, refer to.

• When Monitored: With the ignition on. Remote start present and configured.

• Set Condition: Short to ground detected on the Remote Start Antenna.






Always perform the WIN Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to => Non-DTC Based Diagnostics. Wireless Ignition Node Pre-Diagnostic Procedure

Test Step 1 - CHECK FOR AN INTERMITTENT CONDITION

• Turn the ignition on.

• With the scan tool, record and erase the WIN DTCs.

• Cycle the ignition switch from on to off, wait five seconds and then back to on.

• With the scan tool, read the active WIN DTCs.

Does the scan tool display: B1A77 - REMOTE START ANTENNA CIRCUIT LOW as Active?

Yes

• Go to Test Step 2

No

• Perform the WIN Intermittent Test. Refer to => Non-DTC Based Diagnostics. Wireless Ignition Node Intermittent Test

Test Step 2 - CHECK WIN

• Unplug the Remote Start Antenna from the WIN module.

• With the scan tool, record and erase the WIN DTCs.

• Cycle the ignition switch from on to off, wait five seconds and then back to on, wait five seconds.

• With the scan tool, read the active WIN DTCs.

• The "B1A79-Remote Start Antenna Circuit Open or Not Connected" will probably display as active.

Does the scan tool display; B1A77 - REMOTE START ANTENNA CIRCUIT LOW as Active?

Yes

• Replace the Wireless Ignition Node (WIN) in accordance with the Service Information. If this vehicle is equipped with a Steering Column Lock Module (BUX), it must also be replaced in accordance with the Service Information. When replacing the WIN and the Steering Column Lock Module (ELV), the Win MUST be programmed BEFORE the Steering Column Lock Module (ELV) is programmed.

• Replace and program the Wireless Ignition Node (WIN).

• Replace and program the Steering Column Lock Module (ELV).

• Perform the WIN Verification Test. Refer to => Non-DTC Based Diagnostics. Wireless Ignition Node Verification Test

No

• Replace the Remote Start Antenna.

• Perform the WIN Verification Test. Refer to => Non-DTC Based Diagnostics. Wireless Ignition Node Verification Test