Diesel Data: Automotive Repair

DTC 26-1x

DTC 26-1x (26-10 to 26-19,26-1A to 26-1F): Open or Increased Resistance in Front Passenger's Lap Belt Tensioner

Special Tools Required
- SRS inflator simulator 07SAZ-TB4011A
- SRS simulator lead L 070AZ-SNAA300

1. Erase the DTC memory
2. Turn the ignition switch ON (II), and check that the SRS indicator comes on for about 6 seconds and then goes off.

Does the SRS indicator stay on, and is DTC 26-1x indicated?

YES - Go to step 3.

NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Troubleshooting Intermittent Failures
If another DTC is indicated, Go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions

3. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.




4. Disconnect the floor wire harness 2P connector (A) from the front passenger's lap belt tensioner (B).
5. Connect the SRS inflator simulator (2 Ohm connectors) and simulator lead L to the floor wire harness.
6. Reconnect the negative cable to the battery.
7. Erase the DTC memory.
8. Read the DTC.

Is DTC 26-1x indicated?

YES - Go to step 9.

NO - Open or increased resistance in the front passenger's lap belt tensioner; replace the front passenger's seat belt.

9. Turn the ignition switch OFF. Disconnect the negative cable from the battery, and wait for 3 minutes.
10. Disconnect the both seat belt tensioner 4P connectors.
11. Disconnect the driver's lap belt tensioner 2P connector.
12. Disconnect SRS unit connector B (28P) from the SRS unit.




13. Check resistance between the No. 9 terminal and the No. 10 terminal of SRS unit connector B (28P). There should be 2.0-3.0 Ohms.

Is the resistance as specified?

YES - Faulty SRS unit or poor connection at SRS unit connector B (28P) and the SRS unit. Check the connection; if the connection is OK, replace the SRS unit.

NO - Open or increased resistance in the floor wire harness; replace the floor wire harness.