DTC 26: Lateral Acceleration Sensor

NOTE: If DTC 64 is stored at the same time as DTC 26, troubleshoot DTC 64 first, then recheck for DTC 26.

Turn the ignition switch ON (II).
Clear the DTC with the HDS.
Turn the ignition switch OFF, then disconnect the HDS.
Test-drive the vehicle around a number of corners.
Check for DTCs with the HDS.
Is DTC 26 indicated?

YES -Go to step 6.

NO -Intermittent failure, the system is OK at this time (see INTERMITTENT FAILURES ), and recheck.
Turn the ignition switch OFF.
Disconnect the VSA modulator-control unit 47P connector, steering angle sensor 5P connector and yaw rate-lateral acceleration sensor 5P connector.
Turn the ignition switch ON (II).
Measure the voltage between body ground and VSA modulator-control unit 47P connector terminals No. 33, No. 35, and No. 37 individually.

Fig 1: Measuring Voltage Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminal 33, 35 And 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 0.1 V or more?

YES -Repair short to power in the wire between the VSA modulator-control unit, the yaw rate-lateral acceleration sensor and the steering angle sensor.

NO -Go to step 10.
Turn the ignition switch OFF.
Check for continuity between body ground and VSA modulator-control unit 47P connector terminals No. 33, No. 35, and No. 37 individually.

Fig 2: Checking Continuity Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminal No. 33, 35 And 37
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Repair short to body ground in the wire between the VSA modulator-control unit, the yaw rate-lateral acceleration sensor and the steering angle sensor.

NO -Go to step 12.
Check for continuity between VSA modulator-control unit 47P connector terminal No. 35 and yaw rate-lateral acceleration sensor 5P connector terminal No. 2.

Fig 3: Checking Continuity Between VSA Modulator-Control Unit 47P Terminal 35 And Yaw Rate-Lateral Acceleration 5P Connector Terminal 2
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 13.

NO -Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral acceleration sensor.
Check for continuity between VSA modulator-control unit 47P connector terminal No. 33 and yaw rate-lateral acceleration sensor 5P connector terminal No. 4.

Fig 4: Checking Continuity Between VSA Modulator-Control Unit 47P Connector Terminal No. 33 And Yaw Rate-Lateral Acceleration 5P Connector Terminal 4
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
YES -Go to step 14.

NO -Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral acceleration sensor.
Check for continuity between VSA modulator-control unit 47P connector terminal No. 37 and yaw rate-lateral acceleration sensor 5P connector terminal No. 5.

Fig 5: Checking Continuity Between VSA Modulator-Control Unit 47P Connector Terminal No. 37 And Yaw Rate-Lateral Acceleration 5P Connector Terminal 5
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 15.

NO -Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral acceleration sensor.
Substitute a known-good yaw rate-lateral acceleration sensor.
Reconnect all connectors.
Turn the ignition switch ON (II).
Clear the DTC with the HDS.
Turn the ignition switch OFF, then disconnect the HDS.
Test-drive the vehicle around a number of corners.
Check for DTCs with the HDS.
Is DTC 25 indicated?

YES -Check for loose terminals in the VSA modulator-control unit 47P connector, and inspect for a loose or poor connection at G302. If necessary, substitute a known-good VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ), and retest.

NO -Replace the original yaw rate-lateral acceleration sensor (see YAW RATE-LATERAL ACCELERATION SENSOR REPLACEMENT ).