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TSB 18-030-02

Flash: Engine Undershoots Idle When the Vehicle Is Stopped, In Gear

Visit Geno's Garage for Truck accessories.

Date: Oct. 14, 2002

Models: 2002 (DR) Ram Truck

NOTE: THIS BULLETIN APPLIES TO 2002 (DR) RAM TRUCKS EQUIPPED WITH A 4.7L ENGINE (SALES CODE EVA) AND AUTOMATIC TRANSMISSION (SALES CODE DG4).

Overview:

This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (02Cal22).

Symptom/Condition:
Customer may complain that the engine intermittently undershoots target idle when the vehicle is stopped, in gear.

Diagnosis:
If customer complaint matches the Symptom/Condition perform the Repair Procedure.

Parts Required:

Qty.	Part No.	Description
1	04669020	Label,   Authorized Software Update
1	04275086AB	Label,   Authorized Modification

Equipment Required:

NPN	Battery Charger
CH6000	Scan Tool (DRB III)
CH7035	General Purpose Interface Bus Cable (GPIB)
CH7000/7001	J1962 Cable
	MDS2 (Mopar DiagnosticSystem)

1.    Connect the battery to a charger and set as close to 14 volts as possible.

2.    Flash the controller using the MDS2 (Mopar Diagnostic System) and DRBIII.

NOTE: DUE TO THE PCM REPROGRAMMING PROCEDURE, A DTC MAY BE SET IN OTHER MODULES (EATX, BCM, MIC, SKIM, ETC.) WITHIN THE VEHICLE, IF SO EQUIPPED. SOME DTC'S MAY CAUSE THE MIL TO ILLUMINATE. ALL DTC'S RELATE TO A LOSS OF COMMUNICATIONS WITH THE MODULE THAT IS BEING REPROGRAMMED. CHECK ALL MODULES, RECORD THE FAULTS, AND ERASE THESE FAULTS PRIOR TO RETURNING THE VEHICLE TO THE CUSTOMER. ERASE ANY FAULTS IN THE PCM ONLY AFTER ALL OTHER MODULES HAVE HAD THEIR FAULTS ERASED.

NOTE: THE FOLLOWING STEPS ARE REQUIRED BY LAW.

3.    Type the necessary information on the "Authorized Software Update Label" p/n 04669020 (Figure 1). Attach the label to the PCM and cover the label with the clear plastic overlay.

 4.  Type or print the following information on the "Authorized Modification Label" P/N 04275086AB and attach the label near the VECI label (Fig 2).

Policy:    Reimbursable within the provisions of the warranty.

Time Allowance:
Labor Operation No:  08-19-47-94  Preprogram Powertrain Control Module ....................0.5 Hrs.

Failure Code:  FM - Flash Module

This page was edited on: May 3, 2004