DTC 26: Lateral Acceleration Sensor

NOTE: If DTC 27 or DTC 64 is stored at the same time as DTC 26, troubleshoot DTC 27 or DTC 64 first, then recheck for DTC 26.

Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).
Disconnect the HDS from the 16P DLC.
Turn the ignition switch OFF, then turn it ON (II) again.
Test-drive the vehicle around a number of corners.
Verify the DTC.
Is DTC 26 indicated?
1. YES - Go to step 6.
2. NO - The system is OK at this time.
Turn the ignition switch OFF.
Disconnect the VSA modulator-control unit 47P connector, the steering angle sensor 5P connector, and the yaw rate-lateral acceleration sensor 5P connector.
Turn the ignition switch ON (II).
Measure the voltage between body ground and the VSA modulator-control unit 47P connector terminal No. 33, No. 35, and No. 37 individually.

Fig 1: Measuring Voltage Between Body Ground & VSA Modulator-Control Unit 47P Connector Terminal No. 33, No. 35 & No. 37 Individually
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 0.1 V or more?
1. 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.
2. NO - Go to step 10.
Turn the ignition switch OFF.
Check for continuity between body ground and the VSA modulator-control unit 47P connector terminal No. 33, No. 35, and No. 37 individually.

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

Is there continuity?
1. 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.
2. NO - Go to step 12.
Check for continuity between the VSA modulator-control unit 47P connector terminal No. 35 and yaw rate-lateral acceleration sensor 5P connector terminal No. 2.

Fig 3: Checking Continuity VSA Modulator-Control Unit 47P Connector Terminal No. 35
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
1. YES - Go to step 13.
2. NO - Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral acceleration sensor.
Check for continuity between the VSA modulator-control unit 47P connector terminal No. 33 and yaw rate-lateral acceleration sensor 5P connector terminal No. 4.

Fig 4: Checking Continuity VSA Modulator-Control Unit 47P Connector Terminal No. 33
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?
1. YES - Go to step 14.
2. NO - Repair open in the wire between the VSA modulator-control unit and the yaw rate-lateral acceleration sensor.
Check for continuity between the VSA modulator-control unit 47P connector terminal No. 37 and yaw rate-lateral acceleration sensor 5P connector terminal No. 5.

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

Is there continuity?
1. YES - Go to step 15.
2. 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 of the disconnected connectors.
Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).
Disconnect the HDS from the 16P DLC.
Turn the ignition switch OFF, then turn it ON (II) again.
Test-drive the vehicle around a number of corners.
Verify the DTC.
Is DTC 25 indicated?
1. YES - Check for loose terminals and repair if necessary. Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
2. NO - Replace the original yaw rate-lateral acceleration sensor (see YAW RATE-LATERAL ACCELERATION SENSOR REPLACEMENT ).