Flash: Powertrain Control Module (Pcm) Updates (18-060-14 REV. C)

WARNING: This page is about the Cherokee Latitude, 2.4L Eng VIN B, AWD, which is a different variant/trim than selected.

Publication date: 2019-02-09
Reference number: 18-060-14 REV. C
Supersedes refnos: 08-005-15, 18-004-16, 18-004-16 REV. A, 18-004-16 REV. B, 18-005-15, 18-005-15 REV. A, 18-005-15 REV. B, 18-005-15 REV. C, 18-005-15 REV. D, 18-005-15 REV. E, 18-013-14, 18-013-14 REV. A, 18-014-17, 18-022-19, 18-046-14, 18-060-14, 18-060-14 REV. A, 18-060-14 REV. B

FLASH: POWERTRAIN CONTROL MODULE (PCM) UPDATES

TECHNICAL SERVICE BULLETIN

Reference Number(s): 18-022-19, Date of Issue: February 09, 2019

CHRYSLER:	2014-2015 Jeep Cherokee (KL)
GROUP:	18 - Vehicle Performance

Superceded Bulletin(s): 18-014-17, Date of Issue: February 10, 2017

NOTE: THIS BULLETIN SUPERSEDES SERVICE BULLETIN 18-014-17, DATED FEBRUARY 10, 2017, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITIONAL DIAGNOSTIC TROUBLE CODES (DTCs), SYMPTOM/CONDITION AND LOP.

THIS SERVICE BULLETIN IS ALSO BEING RELEASED AS RAPID RESPONSE TRANSMITTAL (RRT) 15-013 ALL APPLICABLE SOLD AND UN-SOLD RRT VIN's HAVE BEEN LOADED. TO VERIFY THAT THIS RRT SERVICE ACTION IS APPLICABLE TO THE VEHICLE, USE VIP OR PERFORM A VIN SEARCH IN DEALERCONNECT/SERVICE LIBRARY. ALL REPAIRS ARE REIMBURSABLE WITHIN THE PROVISIONS OF WARRANTY.

SUBJECT

Flash: Powertrain Control Module (PCM) Updates

OVERVIEW

This bulletin involves reprogramming the PCM with the latest available software.

MODELS

MODELS CHART

2014 - 2015

(KL)

Jeep Cherokee

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

NOTE: This bulletin applies to all models equipped with a 2.4L engine (Sales Code ED6 or ED8).

SYMPTOM/CONDITION

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

2015 KL Only

U1504 - Implausible Message Data Length Received From Steering Angle Sensor.
P0128 - Thermostat Rationality.
P0335 - Crankshaft Position Sensor Circuit.
P0340 - Camshaft Position Sensor Circuit Bank 1 Sensor 1.
P0109 - Manifold Absolute Pressure Sensor Circuit Intermittent.
U1431 - Implausible ACC Torque Message Received.
U1186 - Lost ACC Torque Message.
P1066 - Cylinder 1 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1068 - Cylinder 2 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106C - Cylinder 4 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1185 - General Pressure Sensor Correlation.
U0402 - Implausible Data Received From TCM (ED6).
U1424 - Implausible Engine Torque Signal Received.
P0300 - Multiple Cylinder Misfire.
P0301 - Cylinder 1 Misfire.
P0302 - Cylinder 2 Misfire.
P0303 - Cylinder 3 Misfire.
P0304 - Cylinder 4 Misfire.
P0456 - EVAP System Small Leak.
P2610 - PCM Internal Engine Off Timer Performance.
P1607 - PCM Internal Shutdown Timer Rationality.
P0116 - Engine Coolant Temperature Sensor 1 Performance.
P050D - Cold Start Rough Idle.
P2172 - High Airflow/Vacuum Leak Detected.
P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM.

2014 KL Only

**P0133-O2 Sensor 1/1 Slow Response (ED6).
U0402 - Implausible Data Received From TCM (ED6).**
P0128 - Thermostat Rationality.
P0335 - Crankshaft Position Sensor Circuit.
P0340 - Camshaft Position Sensor Circuit Bank 1 Sensor 1.
P0109 - Manifold Absolute Pressure Sensor Circuit Intermittent.
U1504 - Implausible Message Data Length Received From Steering Angle Sensor.
U1431 - Implausible ACC Torque Message Received.
U1186 - Lost ACC Torque Message.
P1066 - Cylinder 1 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1068 - Cylinder 2 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106C - Cylinder 4 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1185 - General Pressure Sensor Correlation.
P2172 - High Airflow/Vacuum Leak Detected.
P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1 has been set in the PCM.
P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P2251 - O2 Sensor 1/1 Negative Current Control Circuit Open.
P0031 - O2 Sensor 1/1 Heater Circuit Low.

In addition, some customers may experience one or more of the following conditions:

**Driveability "bump feeling" after a light throttle tip-in (ED6).**
Cold Engine Startup Flare and Idle Surge (ED6).
Intermittent elevated engine RPM at start up.
Less than desired gear engagement in lower ambient temperatures.
Less than desired idle performance.

In addition, the following software enhancements are available:

**Airflow calibration and Min spark changes to prevent catalytic converter overheating.**
Blend door timer changed to prevent false failures.

DIAGNOSIS

Using a Scan Tool (wiTECH) with the appropriate Diagnostic Procedures available in DealerConnect/Service Library, verify all related systems are functioning as designed. If DTCs or symptom conditions, other than the ones listed above are present, record the issues on the repair order and repair as necessary before proceeding further with this bulletin.

If the customer describes the symptom/condition listed above or if the technician finds the DTC, perform the REPAIR PROCEDURE .

REPAIR PROCEDURE

NOTE: The Transmission Control Module (TCM) must be updated to the latest available software at the conclusion of this repair procedure. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding updating the TCM software.

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' "HELP" tab.
Clear any DTCs that may have been set in all modules due to reprogramming. The wiTECH application will automatically present all DTCs after the flash and allow them to be cleared.
Verify the TCM is programmed with the latest available software. Refer to all applicable published service bulletins for detailed repair procedures and labor times regarding updating the TCM software.

POLICY

Reimbursable within the provisions of the warranty.

TIME ALLOWANCE

TIME ALLOWANCE CHART

Labor Operation No:	Description	Skill Category	Amount
**18-19-06-90	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