SRS System

Control System DTCs

SRS DTC Troubleshooting: 86-1x, 86-2x

DTC 86-1x ("x" can be 0 thru 9 or A thru F) : Faulty OPDS Seat-Back Sensor
DTC 86-2x ("x" can be 0 thru 9 or A thru F) : Faulty OPDS Seat Support Sensor

NOTE:
* Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components, of the correct part number, and that they were properly installed Service and Repair.
* Before doing this troubleshooting procedure, review SRS Precautions and Procedures Service and Repair and General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes.
* Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS unit software Programming and Relearning, and retest.

1. Problem verification:

Problem verification
-1. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

-2. Turn the ignition switch to ON (II), then wait for 10 seconds.

-3. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 86-1x or 86-2x indicated?
-YES- The failure is duplicated. Go to step 2.
-NO- Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures Reading and Clearing Diagnostic Trouble Codes. If another DTC is indicated, troubleshoot the DTC.

2. Connector visual check:

Connector visual check
-1. Turn the ignition switch to LOCK (0).

-2. Turn over the seat-back cover/pad to gain access to the ODS unit Service and Repair.

-3. Remove the cover (A), then check the connection between the ODS unit 18P connector (B), the OPDS sensor connectors (C), and the ODS unit.





Are the connectors OK?
-YES- Go to step 4.
-NO- Go to step 3.

3. System check 1:

System check 1
-1. Repair the poor connector connections which was the cause of the problem in step 2.

-2. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

-3. Turn the ignition switch to ON (II), then wait for 10 seconds.

-4. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 86-1x or 86-2x indicated?
-YES- Turn the ignition switch to LOCK (0), then go to step 4.
-NO- Troubleshooting is complete.

4. System check 2:

System check 2
-1. Replace the seat-back cover/pad equipped with an OPDS sensor Front Seat-Back Cover Removal and Installation - Passengers Seat.

-2. Clear the DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

-3. Do the ODS unit initialization Programming and Relearning.

-4. Turn the ignition switch to ON (II), then wait for 10 seconds.

-5. Check for DTCs with the HDS Reading and Clearing Diagnostic Trouble Codes.

Is DTC 86-1x or 86-2x indicated?
-YES- Replace the ODS unit Service and Repair, then clear the DTC, and retest. If the DTC is still present, replace the SRS unit Service and Repair.
-NO- The system is OK at this time.