Flash: Powertrain Control Module (Pcm) Updates (18-080-18)

Publication date: 2018-10-26
Reference number: 18-080-18

FLASH: POWERTRAIN CONTROL MODULE (PCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-080-18, Date of Issue: October 26, 2018

CHRYSLER:	2012-2013 Jeep Wrangler (JK)
GROUP:	18 - Vehicle Performance

Superceded Bulletin(s): 18-001-17, Date of Issue: January 13, 2017

NOTE: THIS BULLETIN SUPERSEDES SERVICE BULLETINS 18-001-17 DATED JANUARY 13, 2017, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE ADDITIONAL SYMPTOM/CONDITIONS, UPDATED FAILURE CODE STATEMENT AND LOP.

SUBJECT

Flash: Powertrain Control Module (PCM) Updates

OVERVIEW

This bulletin involves reprogramming the PCM with updated software.

MODELS

MODELS CHART

2012-2013

(JK)

Jeep Wrangler

NOTE: This bulletin applies to vehicles within the following markets/countries: NAFTA, APAC, EMEA and LATAM.

NOTE: This bulletin applies to vehicles equipped with 3.6L V6 24V VVT Engine (Sales Code ERB).

SYMPTOM/CONDITION

A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs:

P0116 - Engine Coolant Temperature Sensor Performance (13 MY only) .
P0456 - EVAP System Small Leak (13 MY only) .
U0140 - Lost Communication With Body Control Module. (Attempting to clear the DTC may be unsuccessful) .

**Customers may also describe the following condition:

Hard launch and an increase in engine RPM, when shifting from park to drive (Automatic transmission vehicles only) .
Engine RPM increase at startup and/or between shifts (Manual transmission vehicles only) .**

Other enhancements included in this update:

Improved fuel pump relay operation.
Improved remote start time after key activation.
Improved Automatic Shutdown Relay (ASD) timer calibration.

DIAGNOSIS

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all related systems are functioning as designed. If DTCs other than the ones 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 DTCs, perform the Repair Procedure.

REPAIR PROCEDURE

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.

Reprogram the PCM with the latest software. Detailed instructions for flashing control modules using the wiTECH Diagnostic Application are available by selecting the application's "HELP" tab.
Clear any DTCs that may have been set in any module due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
**18-19-06-XD	Module, Powertrain Control (PCM) -Reprogram (0 - Introduction)	1 - Engine Repair and Performance	0.2 Hrs.**

NOTE: The expected completion time for the flash download portion of this procedure is approximately 5 minutes. Actual flash download times may be affected by vehicle connection and network capabilities.

FAILURE CODE

The dealer must use failure code CC with this Service Bulletin.

If the customer's concern matches the SYMPTOM/CONDITION identified in the Service Bulletin, failure code CC is to be used.
When utilizing this failure code, the 3C's (customer's concern, cause and correction) must be provided for processing Service Bulletin flash/reprogramming conditions.

FAILURE CODE CHART

CC	Customer Concern