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Home >> Honda >> 2002 >> Insight Automatic CVT >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Automatic Transmission (CVT) >> CVT >> DTC Troubleshooting >> DTC P2159: Range/Performance Problem in CVT Speed Sensor Circuit >> 2005-2006 Models

2005-2006 Models

NOTE:
  • Record all freeze data and review General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ) before you troubleshoot.
  • This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
  1. Raise the front of the vehicle, make sure it is securely supported, and allow the front wheels to rotate freely.
  2. Start the engine, and shift into the D position. Push on the accelerator pedal until the rotational speed of the VEHICLE SPEED SENSOR is the same speed as indicated by the freeze data.
  3. Monitor the SECONDARY SHAFT SPEED and VEHICLE SPEED SENSOR with the HDS in the data list.

    Do the SECONDARY SHAFT SPEED and VEHICLE SPEED SENSOR signals fluctuate with the same speed?

    1. YES  -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the CVT speed sensor and TCM.
    2. NO  -Go to step 4.
  4. Turn the ignition switch OFF.
  5. Check for continuity between TCM connector terminals A4 and body ground, and between A17 and body ground.
    Fig 1: Checking Continuity Between TCM Connector Terminals A4, A17 And Body Ground
    G03681934Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  -Go to step 6.
    2. NO  -Repair an open in the wires between TCM connector terminals A4, A17, and ground (G 101), or repair poor ground (G101).
  6. Disconnect CVT speed sensor connector.
  7. Turn the ignition switch ON (II).
  8. Check for voltage between CVT speed sensor connector terminal No. 2 and body ground.
    Fig 2: Checking Voltage Between CVT Speed Sensor Connector Terminal 2 And Body Ground
    G03681935Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    1. YES  -Go to step  15.
    2. NO  -Go to step 9.
  9. Turn the ignition switch OFF.
  10. Disconnect TCM connector B (22P).
  11. Check for continuity between CVT speed sensor connector terminal No. 2 and body ground.
    Fig 3: Checking Continuity Between CVT Speed Sensor Connector Terminal 2 And Body Ground
    G03681936Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  -Repair a short to ground in the wire between TCM connector terminal B15 and the CVT speed sensor.
    2. NO  -Go to step 12.
  12. Connect TCM connector B (22P).
  13. Turn the ignition switch ON (II).
  14. Measure the voltage between TCM connector terminals B15 and A4.
    Fig 4: Measuring Voltage Between TCM Connector Terminals B15 And A4
    G03681937Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    1. YES  -Repair an open in the wire between TCM connector terminal B15and the CVT speed sensor.
    2. NO  -Check for loose or poor connections at TCM connector terminal B15. If the connection is OK, substitute a known-good TCM (see HOW TO TROUBLESHOOT CIRCUIT AT THE TCM ), then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
  15. Measure the voltage between CVT speed sensor connector terminal No. 1 and body ground.
    Fig 5: Measuring Voltage Between CVT Speed Sensor Connector Terminal 1 And Body Ground
    G03681938Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    1. YES  -Go to step  22.
    2. NO  -Go to step 16.
  16. Turn the ignition switch OFF.
  17. Disconnect TCM connector B (22P).
  18. Check for continuity between CVT speed sensor connector terminal No. 1 and body ground.
    Fig 6: Checking Continuity Between CVT Speed Sensor Connector Terminal 1 And Body Ground
    G03681939Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there continuity? 

    1. YES  -Repair a short to ground in the wire between TCM connector terminal B3 and the CVT speed sensor.
    2. NO  -Go to step 19.
  19. Connect TCM connector B (22P).
  20. Turn the ignition switch ON (II).
  21. Measure the voltage between TCM connector terminals B3and A4.
    Fig 7: Measuring Voltage Between TCM Connector Terminals B3 And A4
    G03681940Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    1. YES  -Repair an open in the wire between TCM connector terminal B3 and the CVT speed sensor.
    2. NO  -Check for loose or poor connections at TCM connector terminal B3. If the connection is OK, substitute a known-good TCM (see HOW TO TROUBLESHOOT CIRCUIT AT THE TCM ), then recheck. If the symptom/indication goes away with a known-good TCM, replace the original TCM.
  22. Measure the voltage between CVT speed sensor connector terminals No. 1 and No. 3.
    Fig 8: Measuring Voltage Between CVT Speed Sensor Connector Terminals 1 And 3
    G03681941Courtesy of AMERICAN HONDA MOTOR CO., INC.

    Is there about 5 V? 

    1. YES  -Replace the CVT speed sensor (see SPEED SENSOR REPLACEMENT ), then go to step 23.
    2. NO  -Repair an open in the wire between TCM connector terminal B16 and the CVT speed sensor.
  23. Clear the DTC with the HDS.
  24. Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.
  25. Check that DTC P2159 recurs.

    Is DTC P2159 indicated? 

    1. YES  -Return to step  4. and recheck.
    2. NO  -Troubleshooting is complete.
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