Restraints - SRS Flash Code and PID Code Definitions

NUMBER: JTB00060

DATE: 24 SEP 2007

MODEL:
S-TYPE

THIS BULLETIN REPLACES ALL OF S501-26. THE CHANGES ARE SHOWN WITH HIGHLIGHTS IN THE IMAGES AND ASTERISKS TO UPDATE THE TEXT.

SECTION: 501-20B

Supplemental Restraint System (SRS) Flash Code and PID Code Definitions - Diagnostic Aid

AFFECTED VEHICLE RANGE:
S-Type VIN: M44998 - Onwards
Model Year: 2003 - Onwards

Situation:

This bulletin provides information on Flash Codes and Parameter Identification (PID) code descriptions to assist in the diagnosis of Supplemental Restraint System (SRS) faults.

This document is to be used as a guide only. It supports the existing diagnostic equipment, circuit diagrams in the Electrical Guide, and the Workshop Manual.

Action:

In the event of a customer concern of the above, perform the following Diagnostic Procedure outlined below.

PARTS:

None required. Informational purposes only.

TOOLS

WARRANTY:

NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only.

Always refer to DDW to obtain the latest repair time.

DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.

Normal warranty policy and procedures apply.

DIAGNOSTIC PROCEDURE

RETRIEVING FLASH CODES

CAUTION:
A Midtronics PCS-550 Vehicle Power Supply must be connected to the vehicle battery during diagnosis.

1. Connect the Midtronics PSC-550 Vehicle Power Supply to the vehicle battery.

NOTE:
Only one Flash Code will be displayed at a time; however, there may be multiple fault codes stored which will only be displayed after the original fault is repaired.

2. Retrieve and record any Flash Codes stored in the Restraint Control Module (RCM) by observing the SRS warning indicator located in the instrument cluster.

RETRIEVING DTC AND PID CODES

1. Connect the IDS to the vehicle and begin a new diagnostic session by entering the correct VIN for the current vehicle.

NOTE:
The PID code displayed in brackets next to the DTC differs from the Flash Code. These two codes must not be confused as incorrect diagnosis may occur.

2. Retrieve and record any logged Diagnostic Trouble Codes (DTCs) and PID codes from the RCM.

DIAGNOSING THE FAULT(S)

WARNING:
Ensure all safety procedures are followed before and during any work that is carried out on the SRS.

1. Using the Index, the retrieved Flash Codes, DTCs, and PID codes determine the correct fault description.

2. Check the list of possible causes/connectors against that fault description for poor connections, backed out or bent pins, visible damage, or trapped harnesses.

*NOTE:
Within the IDS Datalogger function there is a facility to display airbag circuit resistance as seen by the restraints control module. Utilizing the Restraints Control Module resistance read function provides an opportunity to observe circuit resistance stability when investigating harness and connector integrity. The IDS airbag resistance read function can be accessed in the body system section of Data logger. Typical resistance values are between 1.6 - 2.9 Ohms with the exception of driver front airbag which is between 2.4 - 4.2 Ohms due to additional circuit length within clockspring.*

3. Repair using standard SRS repair processes.

NOTE:
If a fault is identified within the Occupancy Classification System (OCS) Module, passenger seat weight sensor, or passenger seat weight sensor harness, ALL of these components MUST be replaced as a complete kit.

NOTE:
If the RCM has been identified as being faulty and requires replacement, any additional faults within the SRS MUST be repaired and DTCs cleared BEFORE replacing the RCM.

4. Clear all DTCs.

5. Disconnect the IDS and Midtronics PSC-550 from the vehicle.

FLASH CODES AND PARAMETER IDENTIFICATION (PID) CODES