NUMBER:
GROUP:
DATE:

18-103-22
18 - Vehicle Performance
May 25, 2022

This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retrieval system, or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of FCA US LLC.

SUBJECT:
Flash: Powertrain Control Module (PCM) Updates
OVERVIEW:
This bulletin involves reprogramming the PCM with the latest available software.
MODELS:
2018

(VF)

RAM ProMaster

NOTE: This bulletin applies to vehicles within the following markets/countries: North
America.
NOTE: This bulletin applies to vehicles equipped with a 3.6L V6 24V VVT Engine (Sales Code
ERB).
SYMPTOM/CONDITION:
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further
investigation the technician may find the following Diagnostic Trouble Code (DTC) has been set:
• P0556 - Brake Booster Pressure Sensor Circuit Performance.
Customer may describe the following:
• Fuel odor during frequent stop and re-start driving, during high ambient temps.
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.
PARTS REQUIRED:
Qty.
1 (AR)

Part No.
05147067AI

Description
Vapor Canister

18-103-22

-2-

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.
1. 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.
2. Clear any DTCs that may have been set in other modules due to reprogramming. The wiTECH
application will automatically present all DTCs after the flash and allow them to be cleared.
3. Was the customer concern fuel odor and is this a fleet vehicle with (Sales Code XR8)?
• YES>>> Proceed to Step 4.
• NO>>> This bulletin has been completed use program only LOP (18-19-06-GK).
4. Remove the vapor canister. Refer to the detailed service procedures available in
DealerCONNECT/Service Library under: Service Info> 25 - Emissions Control / Evaporative
Emissions / Canister, Vapor / Removal.
NOTE: If any liquid fuel comes out of the vapor canister, the vapor canister needs to be
replaced.
5. Check the weight of the vapor canister, using any type of scale (letter or package scale can be
used).
6. Does the vapor canister weigh more than 2900 grams (6.25 Lbs)?
• YES>>> Replace the vapor canister with a new part. Proceed to Step 7 use LOP (18-19-06GM).
• NO>>> Install the original canister back on the vehicle. Proceed to Step 7 use LOP (18-1906-GL).
7. Install the vapor canister. Refer to the detailed service procedures available in
DealerCONNECT/Service Library under: Service Info> 25 - Emissions Control / Evaporative
Emissions / Canister, Vapor / Installation.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No:

Description

Skill Category Amount

18-19-06-GK

Module, Powertrain Control (PCM) Reprogram
(0 - Introduction)
Module, Powertrain Control (PCM) Reprogram and Remove Inspection and
Install Original Vapor Canister
(0 - Introduction)
Module, Powertrain Control (PCM) Reprogram and Replace Vapor Canister
(0 - Introduction)

1 - Engine
Repair and
Performance
1 - Engine
Repair and
Performance

0.3 Hrs.

1 - Engine
Repair and
Performance

0.7 Hrs.

18-19-06-GL

18-19-06-GM

0.7 Hrs.

-3-

18-103-22

NOTE: The expected completion time for the flash download portion of this procedure is
approximately 7 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 Technical Service Bulletin.
• If the customer’s concern matches the SYMPTOM/CONDITION identified in the Technical
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 Technical Service Bulletin flash/reprogramming conditions.
CC

Customer Concern