DTC Troubleshooting: 42-Cx
DTC Troubleshooting: 42-Cx
| DTC 42-Cx: | Faulty Power Supply to the Right Front Impact Sensor |
| 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 42-Cx indicated? YES - Go to 3. NO - Intermittent failure, system is OK at this time. Go to Troubleshooting Intermittent Failures. If another DTC is indicated, go to the DTC troubleshooting index for troubleshooting details. |
| 3. | Turn the ignition switch OFF. Disconnect the battery negative cable, and wait for 3 minutes. |
| 4. | Disconnect the driver's airbag 2P connector (A). A |
| 5. | Disconnect the front passenger's 2P connector (A). A |
| 6. | Disconnect both seat belt tensioner 4P connectors (A). A |
| 7. | Disconnect the engine compartment wire harness 2P connector (A) from the right front impact sensor. A |
| 8. | Disconnect SRS unit connector A (28P) from the SRS unit. A |
| 9. | Check resistance between the No. 28 terminal of SRS unit connector A (28P) and body ground. There should be an open circuit, or at least 1 MW. SRS UNIT CONNECTOR A (28P)Wire side of female terminalsGRNIs the resistance as specified? YES - Go to 10. NO - Short to ground in the dashboard wire harness or engine compartment wire harness; replace the faulty harness.n |
| 10. | Check resistance between the No. 16 and No. 28 terminals of SRS unit connector A (28P). There should be an open circuit, or at least 1 MW. SRS UNIT CONNECTOR A (28P)Wire side of female terminalsBRNGRNIs the resistance as specified? YES - Faulty right front impact sensor or SRS unit; replace the right front impact sensor . If the problem is still present, replace the SRS unit.n NO - Short in the dashboard wire harness or engine compartment wire harness; replace the faulty harness.n |