NOTE:
Make sure the harness under the front passenger's seat is not pinched or interfering with other parts.
1. Problem verification:
Is DTC 83-33 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. If another DTC is indicated, troubleshoot the DTC.
2. Open wire check (SWSP3 line):
Is there about 5 V?
YES
The SWSP3 wire is OK. Go to step 3.
NO
Open in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
3. Shorted wire check (SWS3 line):
Front passenger's weight sensor unit connector B (6P)
Is there an open circuit, or at least 1 MΩ?
YES
The SWS3 wire is not shorted. Go to step 4.
NO
Short to ground in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
4. Shorted wire check (SWS3 line to SWS3G line):
Measure the resistance between test points 1 and 2.
Is there an open circuit, or at least 1 MΩ?
YES
The SWS3 and SWS3G wires are not shorted. Go to step 5.
NO
Short to another wire in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
5. Open wire check (SWS3 lines):
Measure the resistance between test points 1 and 2.
Is there 1.0 Ω or less?
YES
Faulty front passenger's weight sensor (front outer side); replace the front passenger's seat rail including all four front passenger's weight sensors, then clear the DTC.
NO
Open in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
DTC TROUBLESHOOTING 83-43: NO SIGNAL FROM THE FRONT PASSENGER'S WEIGHT SENSOR (REAR OUTER SIDE)
NOTE:
Make sure the harness under the front passenger's seat is not pinched or interfering with other parts.
DTC (SWS)
1. Problem verification:
Is DTC 83-43 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. If another DTC is indicated, troubleshoot the DTC.
2. Open wire check (SWSP4 line):
Is there about 5 V?
YES
The SWSP4 wire is OK. Go to step 3.
NO
Open in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
3. Shorted wire check (SWS4 line):
Front passenger's weight sensor unit connector B (6P)
Is there an open circuit, or at least 1 MΩ?
YES
The SWS4 wire is not shorted. Go to step 4.
NO
Short to ground in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
4. Shorted wire check (SWS4 line to SWS4G line):
Measure the resistance between test points 1 and 2.
Is there an open circuit, or at least 1 MΩ?
YES
The SWS4 and SWS4G wires are not shorted. Go to step 5.
NO
Short to another wire in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.
5. Open wire check (SWS4 lines):
Measure the resistance between test points 1 and 2.
Is there 1.0 Ω or less?
YES
Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat rail including all four front passenger's weight sensors, then clear the DTC.
NO
Open in the front passenger's seat wire harness; replace the front passenger's seat wire harness, then clear the DTC.