DTC 46-C1

DTC 46-C1: Faulty Power Supply to the Right Side Impact Sensor (second)

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 46-C1 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 right side wire harness 2P connector (A) from the right side impact sensor (second).
5. Disconnect SRS unit connector C (28P) from the SRS unit.




6. Check resistance between the No. 19 terminal of SRS unit connector C (28P) and body ground. There should be an open circuit or at least 1 Mohm.

Is the resistance as specified?

YES - Go to step 7.

NO - Short to ground in the right side wire harness or left side wire harness; replace the faulty harness.




7. Check resistance between the No. 19 and No. 20 terminals of SRS unit connector C (28P). There should be an open circuit or at least 1 Mohm.

Is the resistance as specified?

YES - Faulty right side impact sensor (second) or SRS unit; replace the right side impact sensor (second). If the problem is still present, replace the SRS unit.

NO - Short in the right side wire harness, or left side wire harness; replace the faulty harness.