DTC 27: Steering Angle Sensor

Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).
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 64 indicated?
1. YES - Do the appropriate troubleshooting for the DTC.
2. NO - Go to step 5.
Turn the ignition switch OFF.
Disconnect the VSA modulator-control unit 47P connector, and steering angle 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. 5, and No. 7 individually.

Fig 1: Measuring Voltage Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminals 5 & 7
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 and the steering angle sensor.
2. NO - Go to step 9.
Measure the voltage between body ground and the VSA modulator-control unit 47P connector terminal No. 3, No. 28, and No. 30 individually.

Fig 2: Measuring Voltage Between Body Ground And VSA Modulator-Control Unit 47P Connector Terminals
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 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. 5, and No. 7 individually.

Fig 3: Checking Continuity Between Body Ground And VSA Modulator-Control Unit 47P Connector 5 And 7
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 and the steering angle sensor.
2. NO - Go to step 12.
Check for continuity between body ground and the VSA modulator-control unit 47P connector terminal No. 3, No. 28, and No. 30 individually.

Fig 4: Checking Continuity Between Body Ground VSA Modulator-Control Unit 47P Connector Terminals
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 and the steering angle sensor.
2. NO - Go to step 13.
Check for continuity between the VSA modulator-control unit 47P connector terminal No. 5, No. 7 and steering angle sensor 5P connector terminal No. 1, No. 5 individually.

Fig 5: Checking Continuity Between VSA Modulator-Control Unit 47P Connector Terminals 5 & 7 And Steering Angle Sensor 5P Connector Terminals 1 & 5
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 steering angle sensor.
Check for continuity between the VSA modulator-control unit 47P connector terminal No. 3, No. 28, No. 30 and steering angle sensor 5P connector terminal No. 2, No. 3, and No. 4 individually.

Fig 6: Checking Continuity Between VSA Modulator-Control Unit 47P Connector Terminals & Steering Angle Sensor Terminals
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 steering angle sensor.
Substitute a known-good steering angle sensor, then do the VSA sensor neutral position memorization (see VSA SENSOR NEUTRAL POSITION MEMORIZATION ).
Reconnect all of the disconnected connectors.
Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).
Test-drive the vehicle around a number of corners.
Verify the DTC.
Is DTC 27 indicated?
1. YES - Check for loose terminals in the VSA modulator-control unit 47P connector, if the connections are OK, replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
2. NO - Check for loose terminals in the steering angle sensor 5P connector, if the connections are OK, replace the steering angle sensor (see STEERING ANGLE SENSOR REPLACEMENT ).