DTC 83-43: No Signal From the Front Passenger's Weight Sensor (rear outer side)

NOTE: 

• Before doing this troubleshooting procedure, find out if the vehicle was in a collision. If so, verify that all the required components were replaced with new components of the correct part number, and that they were properly installed .
• Before doing this troubleshooting procedure, review SRS Precautions and Procedures and General Troubleshooting Information .
• Make sure the harness under the front passenger's seat is not pinched or interfering with other parts.

DTC (SWS)

• 1. Problem verification:

  1. Clear the DTCs with the HDS .

  2. Turn the vehicle to the ON mode, then wait for 10 seconds.

  3. Check for DTCs with the HDS .

  DTC Description	DTC
  83-43 No signal from the front passenger's weight sensor (rear outer side)

  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):

  1. Turn the vehicle to the OFF (LOCK) mode.

  2. Disconnect the front passenger's weight sensor (rear outer side) 3P connector (A) on the front passenger's seat wire harness.

  Courtesy of HONDA, U.S.A., INC.

  3. Turn the vehicle to the ON mode.

  4. Measure the voltage between test points 1 and 2.

  Test condition	Vehicle ON mode
  	Front passenger's weight sensor (rear outer side) 3P connector (on the front passenger's seat wire harness): disconnected
  Test point 1	Front passenger's weight sensor (rear outer side) 3P connector No. 1 (on the front passenger's seat wire harness)
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  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 (SWSS4 line):

  1. Turn the vehicle to the OFF (LOCK) mode.

  2. Disconnect the following connector.

  Front passenger's weight sensor unit connector B (6P)

  3. Measure the resistance between test points 1 and 2.

  Test condition	Vehicle OFF (LOCK) mode
  	Front passenger's weight sensor unit connector B (6P): disconnected
  	Front passenger's weight sensor (rear outer side) 3P connector (on the front passenger's seat wire harness): disconnected
  Test point 1	Front passenger's weight sensor unit connector B (6P) No. 5
  Test point 2	Body ground

  Courtesy of HONDA, U.S.A., INC.

  Is there an open circuit, or at least 1 MΩ?

  YES 

  The SWSS4 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 (SWSS4 line to SWSG4 line):

  1. Measure the resistance between test points 1 and 2.

  Test condition	Vehicle OFF (LOCK) mode
  	Front passenger's weight sensor unit connector B (6P): disconnected
  	Front passenger's weight sensor (rear outer side) 3P connector (on the front passenger's seat wire harness): disconnected

  Test point 1	Front passenger's weight sensor (rear outer side) 3P connector No. 2 (on the front passenger's seat wire harness)
  Test point 2	Front passenger's weight sensor (rear outer side) 3P connector No. 3 (on the front passenger's seat wire harness)

  Courtesy of HONDA, U.S.A., INC.

  Is there an open circuit, or at least 1 MΩ?

  YES 

  The SWSS4 and SWSG4 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 (SWSS4 lines):

  1. Measure the resistance between test points 1 and 2.

  Test condition	Vehicle OFF (LOCK) mode
  	Front passenger's weight sensor unit connector B (6P): disconnected
  	Front passenger's weight sensor (rear outer side) 3P connector (on the front passenger's seat wire harness): disconnected
  Test point 1	Front passenger's weight sensor unit connector B (6P) No. 5
  Test point 2	Front passenger's weight sensor (rear outer side) 3P connector No. 2 (on the front passenger's seat wire harness)

  Courtesy of HONDA, U.S.A., INC.

  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.