04 03 10 TORQUE WRENCH

Date: 120726

Engine Controls - MIL ON/DTC P0108 Set

NUMBER: 18-021-12

GROUP: Vehicle Performance

DATE: July 26, 2012

HELP USING THE wiTECH DIAGNOSTIC APPLICATION FOR FLASHING AN ECU IS

AVAILABLE BY SELECTING "HELP" THEN "HELP CONTENTS" AT THE TOP OF

THE wiTECH DIAGNOSTIC APPLICATION WINDOW.

THE wiTECH SOFTWARE LEVEL MUST BE AT RELEASE 13.01 OR HIGHER TO

PERFORM THIS PROCEDURE.

SUBJECT:

Flash: MIL Illumination P0108 - Manifold Absolute Pressure Sensor Circuit High

OVERVIEW:

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

NOTE:

There may be two software packages to choose from. Both software updates will fix all symptoms/conditions listed. Refer to Service Bulletin

21-008-12 for details about the software choices.

MODELS:

2012 (RT) Caravan/Town and Country

NOTE:

This bulletin applies to vehicle equipped with a 3.6L engine (sales code ERB) built before June 25, 2012 (MDH 0625XX).

SYMPTOM/CONDITION:

The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that P0108 -

Manifold Absolute Pressure Sensor Circuit High has been set active or stored.

Updating the software will correct the condition listed above.

DIAGNOSIS:

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as

designed. If DTC's other then the one listed above are present record them on the repair order and repair as necessary before proceeding further with

this bulletin.

If the customer describes the symptom/condition or if the technician finds the DTC, perform the Repair Procedure.

PARTS REQUIRED:

REPAIR PROCEDURE:

2020 Dodge or Ram Truck Grand Caravan V6-3.6L Page 90

NOTE:

Install a battery charger to ensure battery voltage does not drop below 13.2 volts. Do not allow the charging voltage to climb above 13.5 volts

during the flash process.

NOTE:

If this flash process is interrupted/aborted, the flash should be restarted.

1. Reprogram the PCM with the latest software. Follow the detailed service procedures available in DealerCONNECT/TechCONNECT, Refer To

Group 8 - Electrical > Electronic Control Modules - Service Information > Module - Powertrain Control > Standard Procedures > PCM/ECM

Programming.

2. After PCM reprogramming, the following must be performed:clear any DTC's that may have been set in other modules due to reprogramming.

The wiTECH application will automatically present all DTCs after the flash and allow the tech to clear them.

3. Type the necessary information on the "Authorized Modification Label" and attach it near the VECI label.

POLICY:

Reimbursable within the provisions of the warranty.