DTC 83-26: No Signal From the Front Passenger's Weight Sensor (rear outer side)

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

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 ( see COMPONENT REPLACEMENT/INSPECTION AFTER DEPLOYMENT ).
Before doing this troubleshooting procedure, review SRS Precautions and Procedures (see PRECAUTIONS AND PROCEDURES ) and General Troubleshooting Information (see DTC (DIAGNOSTIC TROUBLE CODES) ).

Clear the DTCs with the HDS (see HOW TO CLEAR DTCS ).
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO RETRIEVE DTCS ).
Is DTC 83-26 indicated?

YES -Go to step 4.

NO -Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures (see TROUBLESHOOTING INTERMITTENT FAILURES ).
From the HDS Main Menu, select SRS, then Inspection. In the Inspection Menu, select SWS DTC CHECK.
Is an SWS DTC also indicated?

YES -
- DTC 26-11: Short to power in front passenger's weight sensor (rear outer side) power circuit; replace the front passenger's seat wire harness, then clear the DTC.
- DTC 26-12: Short to ground in the front passenger's weight sensor (rear outer side) power circuit. Go to step 5.
- DTC 26-13: Open in the front passenger's weight sensor (rear outer side) output circuit. Go to step 13.
- DTC 26-14: Short to ground in the front passenger's weight sensor (rear outer side) output circuit. Go to step 22.
NO -Intermittent failure, the system is OK at this time. Go to Troubleshooting Intermittent Failures (see TROUBLESHOOTING INTERMITTENT FAILURES ).
Turn the ignition switch to LOCK (0).
Disconnect the ODS unit harness 3P connector (A) from the front passenger's weight sensor (rear outer side).

Fig 1: Locating ODS Unit Harness 3P Connector (A) At The Front Passenger's Weight Sensor (Rear Outer Side)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO RETRIEVE DTCS ).
Is DTC 26-12 indicated?

YES -Go to step 9.

NO -Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat slide including all four front passenger's weight sensors (see FRONT PASSENGER'S WEIGHT SENSOR REPLACEMENT ), then clear the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the ODS unit harness 18P connector (A) from the ODS unit.

Fig 2: Locating ODS Unit Harness 18P Connector (A) At The ODS Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the resistance between body ground and ODS unit harness 18P connector terminal No. 6. There should be an open circuit or at least 1 MΩ.

Fig 3: Measuring Resistance Between Body Ground And ODS Unit Harness 18P Connector Terminal No. 6
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 12.

NO -Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.
Measure the resistance between ODS unit harness 18P connector terminals No. 6 and No. 16. There should be an open circuit or at least 1 MΩ.

Fig 4: Measuring Resistance Between ODS Unit Harness 18P Connector Terminals No. 6 And No. 16
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT ), then clear the DTC.

NO -Short to another wire in the ODS unit harness; replace the ODS unit harness, then clear the DTC.
Turn the ignition switch to LOCK (0).
Swap the connections between the rear outer side front passenger's weight sensor and the front outer side sensor.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO RETRIEVE DTCS ).
Is DTC 26-13 indicated?

YES -Go to step 17.

NO -Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat slide including all front passenger's weight sensors, (see FRONT PASSENGER'S WEIGHT SENSOR REPLACEMENT ), then clear the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the ODS unit harness 3P connector (A) from the front passenger's weight sensor (front outer side), then disconnect the ODS unit harness 3P connector (B) from the front passenger's weight sensor (rear outer side).

Fig 5: Locating ODS Unit Harness 3P Connector (A) From The Front Passenger's Weight Sensor (Front Outer Side) And ODS Unit Harness 3P Connector (B) From The Front Passenger's Weight Sensor (Rear Outer Side)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the ODS unit harness 18P connector (A) from the ODS unit.

Fig 6: Locating ODS Unit Harness 18P Connector (A) At The ODS Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II).
Measure the voltage between body ground and ODS unit harness 18P connector terminal No. 11. There should be less than 0.2 V.

Fig 7: Measuring Voltage Between Body Ground And ODS Unit Harness 18P Connector Terminal No. 11
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the voltage as specified?

YES -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT ), then clear the DTC.

NO -Short to power in the ODS unit harness; replace the ODS unit harness, then clear the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the ODS unit harness 3P connector (A) from the front passenger's weight sensor (rear outer side).

Fig 8: Locating ODS Unit Harness 3P Connector (A) From The Front Passenger's Weight Sensor (Rear Outer Side)
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Turn the ignition switch to ON (II), then wait for 10 seconds.
Check for DTCs with the HDS (see HOW TO RETRIEVE DTCS ).
Is DTC 26-14 indicated?

YES -Go to step 26.

NO -Faulty front passenger's weight sensor (rear outer side); replace the front passenger's seat slide including all four front passenger's weight sensors (see FRONT PASSENGER'S WEIGHT SENSOR REPLACEMENT ), then clear the DTC.
Turn the ignition switch to LOCK (0).
Disconnect the ODS unit harness 18P connector (A) from the ODS unit.

Fig 9: Locating ODS Unit Harness 18P Connector (A) At The ODS Unit
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the resistance between body ground and ODS unit harness 18P connector terminal No. 11. There should be an open circuit or at least 1 MΩ.

Fig 10: Measuring Resistance Between Body Ground And ODS Unit Harness 18P Connector Terminal No. 11
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Go to step 29.

NO -Short to ground in the ODS unit harness; replace the ODS unit harness, then clear the DTC.
Measure the resistance between ODS unit harness 18P connector terminals No. 11 and No. 16. There should be an open circuit or at least 1 MΩ.

Fig 11: Measuring Resistance Between ODS Unit Harness 18P Connector Terminals No. 11 And No. 16
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is the resistance as specified?

YES -Faulty ODS unit; replace the ODS unit (see ODS UNIT REPLACEMENT ), then clear the DTC.

NO -Short to another wire in the ODS unit harness; replace the ODS unit harness, then clear the DTC.