DTC 11-12: Right-Front Wheel Speed Sensor Power Source Malfunction, DTC 13-12: Left-Front Wheel Speed Sensor Power Source Malfunction, DTC 15-12: Right-Rear Wheel Speed Sensor Power Source Malfunction, DTC 17-12: Left-Rear Wheel Speed Sensor Power Source Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information .

• 1. Problem verification:

  - 1. Turn the ignition switch to ON (II).

  - 2. Clear the DTC with the HDS.

  - 3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

  - 4. Check for DTCs with the HDS.

  Is DTC 11-12, 13-12, 15-12, or 17-12 indicated?

  YES 

  The failure is duplicated. Go to step 2.

  NO 

  Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

• 2. Shorted wire check (Wheel speed sensor lines to power) 1:

  - 1. Turn the ignition switch to LOCK (0).

  - 2. Disconnect the following connector.

  VSA modulator-control unit 22P connector

  - 3. Turn the ignition switch to ON (II).

  - 4. Measure the voltage between body ground and the appropriate wheel speed sensor GND terminals of the VSA modulator-control unit 22P connector individually (see table).

  Test condition	IG ON (II)
  	VSA modulator-control unit 22P connector: disconnected

  DTC	VSA Modulator-Control Unit 22P Connector Terminal	Appropriate Wheel Speed Sensor 2P Connector Terminal
  11-12	No. 21	Right-front
  13-12	No. 18	Left-front
  15-12	No. 17	Right-rear
  17-12	No. 19	Left-rear

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

  Is there 0.1 V or more?

  YES 

  Wheel speed sensor wires are shorted to power. Go to step 3.

  NO 

  The wheel speed sensor wires are OK. Go to step 4.

• 3. Shorted wire check (wheel speed sensor lines to power) 2:

  - 1. Turn the ignition switch to LOCK (0).

  - 2. Disconnect the following connector.

  Appropriate wheel speed sensor 2P connector

  - 3. Turn the ignition switch to ON (II).

  - 4. Measure the voltage between body ground and the appropriate VSA modulator-control unit 22P connector terminals (see table).

  Test condition	IG ON (II)
  	VSA modulator-control unit 22P connector: disconnected
  	Appropriate wheel speed sensor 2P connector: disconnected

  DTC	VSA Modulator-Control Unit 22P Connector Terminal	Appropriate Wheel Speed Sensor 2P Connector Terminal
  11-12	No. 21	Right-front
  13-12	No. 18	Left-front
  15-12	No. 17	Right-rear
  17-12	No. 19	Left-rear

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

  Is there 0.1 V or more?

  YES 

  Repair a short to power in the wire between the VSA modulator-control unit and the appropriate wheel speed sensor.

  NO 

  Replace the appropriate front wheel speed sensor, rear wheel speed sensor - Refer to: Front Wheel Speed Sensor Removal and Installation , Rear Wheel Speed Sensor Removal and Installation .

• 4. Shorted wire check (wheel speed sensor lines):

  - 1. Turn the ignition switch to LOCK (0).

  - 2. Check for continuity between the appropriate VSA modulator-control unit 22P connector wheel speed sensor +B terminals (see table).

  Test condition	IG LOCK (0)
  	VSA modulator-control unit 22P connector: disconnected

  DTC	VSA Modulator-Control Unit 22P Connector Terminal
  	Appropriate Terminal	Other Terminals
  11-12	No. 14	No. 12	No. 11	No. 13
  13-12	No. 12	No. 14	No. 11	No. 13
  15-12	No. 11	No. 14	No. 12	No. 13
  17-12	No. 13	No. 14	No. 12	No. 11

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

  Is there continuity?

  YES 

  Repair short in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit.

  NO 

  The wheel speed sensor wires are OK. Go to step 5.

• 5. VSA modulator-control unit check (update):

  - 1. Reconnect the following connector.

  VSA modulator-control unit 22P connector

  - 2. Update the VSA modulator-control unit if it does not have the latest software - Refer to: VSA Modulator-Control Unit Update , VSA Sensor Neutral Position Memorization , VSA Modulator-Control Unit Removal and Installation (Natural Gas models) , VSA Modulator-Control Unit Removal and Installation (Except Natural Gas models) .

  - 3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

  - 4. Check for DTCs with the HDS.

  Is DTC 11-12, 13-12, 15-12, or 17-12 indicated?

  YES 

  Check for loose terminals in the VSA modulator-control unit 22P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit - Refer to: VSA Modulator-Control Unit Update , VSA Sensor Neutral Position Memorization , VSA Modulator-Control Unit Removal and Installation (Natural Gas models) , VSA Modulator-Control Unit Removal and Installation (Except Natural Gas models) .

  NO 

  Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.

Troubleshooting Start