2014 Jeep Wrangler JK Factory Service Manual 28 - DTC-Based Diagnostics

P1400-AFTERMARKET CALIBRATION DETECTED/WARRANTY VOID

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



POSSIBLE CAUSES

PCM PROGRAMMED WITH INCORRECT SOFTWARE
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

Diagnostic Test


PCM PROGRAMMED WITH INCORRECT SOFTWARE
1. Ignition on, engine not running.
2. Program the PCM in accordance with the Service Information. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).
3. Start the engine.
4. Allow the engine to reach normal operating temperature.
5. With a scan tool, select read the active DTCs.


Does the scan tool display P1400-AFTERMARKET CALIBRATION DETECTED/WARRANTY VOID?

Yes


No