SYMPTOM/CONDITION:
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further
investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM
memory:
• **P0335 - Crankshaft Position Sensor Circuit.**
• U0402 - Implausible Data Received From TCM - (Transmission Control Module).
• P0480 - Cooling Fan 1 Control Circuit/Open.
**In addition, the following software enhancement is available:
• Elimination of (disable) Low idle 550 RPM to mitigate rough idle complaints (Base idle fully
warm maintained at 648 RPM).**
