DTC 74-2x
DTC 74-2x (74-20 to 74-29, 74-2A to 74-2F): Open in Front Passenger's E-pretensioner Motor1. Erase the DTC memory.
2. Read the DTC.
Is DTC 74-2x indicated?
YES - Go to step 3.
NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. Initial Inspection and Diagnostic Overview If another DTC is indicated, go to the DTC Troubleshooting Index. Diagnostic Trouble Code Descriptions
3. Turn the ignition switch OFF.
4. Disconnect e-pretensioner subharness 14Pconnector B from the e-pretensioner unit.
5. Disconnect e-pretensioner subharness 2P connector from the driver's e-pretensioner motor.
6. Check resistance between the No. 13 terminal of e-pretensioner unit connector B (14P) and the No. 2 terminal of front passenger's e-pretensioner motor 2P connector, and between the No. 14 terminal of e-pretensioner unit connector B (14P) and the No. 1 terminal of front passenger's e-pretensioner motor 2P connector. There should be 0-1.0 Ohm.
Is the resistance as specified?
YES - Go to step 7.
NO - Open in the e-pretensioner subharness or right side wire harness; replace the faulty harness.
7. Reconnect the front passenger's e-pretensioner motor 2P connector.
8. Check resistance between the No. 13 and No. 14 terminals of e-pretensioner unit connector B (14P). There should be 0-1.0 Ohm.
Is the resistance as specified?
YES - Faulty e-pretensioner unit; replace the e-pretensioner unit.
NO - Faulty e-pretensioner motor; replace the front passenger's e-pretensioner motor.