Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Jeep >> 2009 >> Wrangler X, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P1697 To P2172 - NGC >> P1897-Level 1 Rpm Bus Unlock >> Possible Causes

Possible Causes

Possible Causes 
POWERTRAIN CONTROL MODULE (PCM)

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