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Vsa System Components: Diagnosis Honda Insight ZE2 рестайлинг

Anti-Lock/traction Control 34 illustrations ~9439 words

Diagnostic Trouble Code (DTC)

  1. The memory can hold all DTCs. However, when the same DTC is detected more than once, the more recent DTC is written over the earlier one. Therefore, when the same problem is detected repeatedly, it is memorized as a single DTC.
  2. The DTCs are memorized in the EEPROM in the VSA modulator-control unit. Therefore, the memorized DTCs cannot be erased by disconnecting the battery. Do the specified procedures to clear the DTCs.

Self-diagnosis

  1. Self-diagnosis can be classified into two categories: Initial diagnosis: Done right after the ignition switch is turned to ON (II) and until the ABS, VSA, and brake system indicator (amber) go off. Regular diagnosis: Done right after the initial diagnosis until the ignition switch is turned to LOCK (0).
  2. When the system detects a problem, the VSA modulator-control unit shifts to fail-safe mode.

How to Troubleshoot DTCs

The troubleshooting procedures assume that the cause of the problem is still present and the ABS, VSA, and/or brake system indicator (amber) are still on. Following a troubleshooting procedure for a DTC that has been cleared but does not reset can result in incorrect diagnosis.

Note. Always troubleshoot fuel and emissions DTCs first.

  1. Question the customer about the conditions when the problem occurred, and try to reproduce the same conditions for troubleshooting. Find out when the ABS, VSA, and/or brake system indicator (amber) came on, such as during activation, after activation, when the vehicle was traveling at a certain speed, etc. If necessary, have the customer demonstrate the concern.
  2. When the ABS, VSA, or brake system indicator (amber) does not come on during the test-drive, but troubleshooting is done based on the DTC, check for loose connectors, poor contact of the terminals, etc. in the circuit indicated by the DTC.
  3. After troubleshooting, or the repairs are done, clear the DTCs, and test-drive the vehicle under the same conditions that originally set the DTCs. Make sure the ABS, VSA, and brake system indicator (amber) do not come on.

How to Use the HDS (Honda Diagnostic System)

Note. Make sure the 12 volt battery is in good condition and fully charged.

Scheme 3

Scheme 3: How to Use the HDS (Honda Diagnostic System)
Scheme 3: How to Use the HDS (Honda Diagnostic System)
  1. If the system indicators stay on, connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.
  2. Turn the ignition switch to ON (II).
  3. Make sure the HDS communicates with the vehicle and the VSA modulator-control unit. If it does not, go to the DLC circuit troubleshooting (see «DLC CIRCUIT TROUBLESHOOTING»(ref-513153-S33429882062012110700000) ).
  4. Check the diagnostic trouble code (DTC) and the freeze data, and note them. Then refer to the indicated «DTC'S TROUBLESHOOTING»(ref-513191-S03425435242012110700000) , and do the appropriate troubleshooting procedure. NOTE: Freeze data indicates the VSA conditions when the first system malfunction that activated the indicator was detected. The HDS can read the DTC, the freeze data, the current data, and other system data. For specific operations, refer to the Help menu that came with the HDS.

DTC Troubleshooting Index

DTCDetection Item
11Right-Front Wheel Speed Sensor Circuit Malfunction
12Right-Front Wheel Speed Sensor Signal Malfunction
13Left-Front Wheel Speed Sensor Circuit Malfunction
14Left-Front Wheel Speed Sensor Signal Malfunction
15Right-Rear Wheel Speed Sensor Circuit Malfunction
16Right-Rear Wheel Speed Sensor Signal Malfunction
17Left-Rear Wheel Speed Sensor Circuit Malfunction
18Left-Rear Wheel Speed Sensor Signal Malfunction
21Right-Front Magnetic Encoder Malfunction
22Left-Front Magnetic Encoder Malfunction
23Right-Rear Magnetic Encoder Malfunction
24Left-Rear Magnetic Encoder Malfunction
25Yaw Rate Sensor Malfunction
26Lateral Acceleration Sensor Malfunction
27Steering Angle Sensor Malfunction
28Longitudinal Acceleration Sensor Malfunction
31ABS Solenoid Valve Malfunction
32ABS Solenoid Valve Malfunction
33ABS Solenoid Valve Malfunction
34ABS Solenoid Valve Malfunction
35ABS Solenoid Valve Malfunction
36ABS Solenoid Valve Malfunction
37ABS Solenoid Valve Malfunction
38ABS Solenoid Valve Malfunction
51Motor Lock
52Motor Stuck
54Fail-Safe Relay Malfunction
61Battery Voltage Low
62Battery Voltage High
64Sensor Power Source Voltage Malfunction
65Brake Fluid Level Low
66Pressure Sensor Malfunction
68Brake Pedal Position Switch Malfunction
81Modulator-Control Unit Internal Circuit Malfunction
83PGM-FI Malfunction
84VSA Sensor Neutral Position Not Written
86F-CAN Communication Malfunction
91VSA Activation Time Too Long
104Yaw Rate-Acceleration Sensor Malfunction
105Hydraulic Unit Temperature Sensor Malfunction
117VSA OFF Switch Malfunction
121VSA Solenoid Malfunction
122VSA Solenoid Malfunction
123VSA Solenoid Malfunction
124VSA Solenoid Malfunction
158ECU Software Update Failure

Symptom Troubleshooting Index

When the vehicle has one of these symptoms, check for VSA diagnostic trouble codes (DTCs) with the HDS. If there are no DTCs, do the diagnostic procedure for the symptom, in the sequence listed, until you find the cause.

SymptomDiagnostic procedureAlso check for
HDS does not communicate with the VSA modulator-control unit or the vehicleTroubleshoot the DLC circuit (see DLC CIRCUIT TROUBLESHOOTING ).
ABS indicator, brake system indicator (red), VSA indicator, brake system indicator (amber) or VSA OFF indicator does not come on at start-up (bulb check)Do the gauge control module self-diagnostic function, (see SELF-DIAGNOSTIC FUNCTION ). Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ). If the VSA modulator-control unit was updated and the symptom is still present, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
VSA cannot be turned OFFSymptom troubleshooting (see VSA CANNOT BE TURNED OFF ). Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ). If the VSA modulator-control unit was updated and the symptom is still present, replace the original VSA modulator-control unit (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).
VSA OFF indicator does not go offDo the VSA sensor neutral position memorization (see VSA SENSOR NEUTRAL POSITION MEMORIZATION ).
ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go offCheck for F-CAN DTCs, and troubleshoot and repair those first. Symptom troubleshooting (see ABS INDICATOR, BRAKE SYSTEM INDICATOR (RED), VSA INDICATOR, AND BRAKE SYSTEM INDICATOR (AMBER) DO NOT GO OFF ).

Scheme 4

Scheme 4: VSA Modulator-Control Unit Inputs and Outputs for 47P Connector
Scheme 4: VSA Modulator-Control Unit Inputs and Outputs for 47P Connector
Terminal numberWire colorTerminal signDescriptionSignal
1GRNMR + BPower source for the motor relayBattery voltage (about 12 V) at all times
5PURSVCCPower source for the steering angle sensor
8PURIG1Power source for activating the systemWith ignition switch ON (II): battery voltage (about 12 V)
10REDK-LINECommunication with HDSPulse voltage (digital signal)
12WHTCANHF-CAN communication circuit
13REDCANLF-CAN communication circuit
16BLKGNDGround for the VSA modulator-control unitContinuity to ground
30LT BLUSTR-ZDetects steering angle sensor signal
32WHTFSR +BPower source for the fail-safe relayBattery voltage (about 12 V) at all times
33BLUFR-GNDDetects right-front wheel sensor signal
34YELFR +BDetects right-front wheel sensor signal
36PNKRL +BDetects left-rear wheel sensor signal
37GRYRL-GNDDetects left-rear wheel sensor signal
38GRNSTR-BDetects steering angle sensor signal
39ORNWENDetects write enable signal
40PNKSGNDGround for the steering angle sensor
41GRYSTR-ADetects steering angle sensor signal
42WHTRR-GNDDetects right-rear wheel sensor signal
43GRNRR +BDetects right-rear wheel sensor signal
45LT GRNFL +BDetects left-front wheel sensor signal
46BRNFL-GNDDetects left-front wheel sensor signal
47BLKMR-GNDGround for the pump motorContinuity to ground

DTC 11: Right-Front Wheel Speed Sensor Circuit Malfunction; DTC 13: Left-Front Wheel Speed Sensor Circuit Malfunction; DTC 15: Right-Rear Wheel Speed Sensor Circuit Malfunction; DTC 17: Left-Rear Wheel Speed Sensor Circuit Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 5

Scheme 5: DTC 11: Right-Front Wheel Speed Sensor Circuit Malfunction; DTC 13: Left-Front Wheel Speed Sensor Ci
Scheme 5: DTC 11: Right-Front Wheel Speed Sensor Circuit Malfunction; DTC 13: Left-Front Wheel Speed Sensor Ci

Scheme 6

Scheme 6
Scheme 6

Scheme 7

Scheme 7
Scheme 7

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9

Scheme 10

Scheme 10
Scheme 10

Scheme 11

Scheme 11
Scheme 11
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 11, 13, 15, or 17 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Turn the ignition switch to LOCK (0).
  7. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  8. Check for continuity between body ground and the appropriate wheel speed sensor +B and GND terminals of the VSA modulator-control unit 47P connector individually (see chart below). DTC Appropriate Terminal +B GND 11 Right-front FR +B: No. 34 FR-GND: No. 33 13 Left-front FL +B: No. 45 FL-GND: No. 46 15 Right-rear RR +B: No. 43 RR-GND: No. 42 17 Left-rear RL +B: No. 36 RL-GND: No. 37 Is there continuity? YES -Go to step 9. NO -Go to step 11 .
  9. Disconnect the appropriate wheel speed sensor 2P connector (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  10. On the sensor side, check for continuity between body ground and wheel speed sensor 2P connector terminals No. 1 and No. 2 and individually. Is there continuity? YES -Replace the appropriate wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ). NO -Repair a short to body ground in the wire between the VSA modulator-control unit and the appropriate wheel speed sensor.
  11. Turn the ignition switch to ON (II).
  12. Measure the voltage between body ground and the appropriate wheel speed sensor +B and GND terminals of the VSA modulator-control unit 47P connector individually (see chart below). DTC Appropriate Terminal +B GND 11 Right-front FR +B: No. 34 FR-GND: No. 33 13 Left-front FL +B: No. 45 FL-GND: No. 46 15 Right-rear RR +B: No. 43 RR-GND: No. 42 17 Left-rear RL +B: No. 36 RL-GND: No. 37 Is there 0.1V or more? YES -Go to step 13. NO -Go to step 17 .
  13. Turn the ignition switch to LOCK (0).
  14. Disconnect the appropriate wheel speed sensor 2P connector (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  15. Turn the ignition switch to ON (II).
  16. On the sensor side, measure the voltage between body ground and wheel speed sensor 2P connector terminals No. 1 and No. 2 individually. Is there 0.1 V or more? YES -Replace the appropriate wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ). NO -Repair a short to power in the wire between the VSA modulator-control unit and the appropriate wheel speed sensor.
  17. Turn the ignition switch to LOCK (0).
  18. Disconnect the appropriate wheel speed sensor 2P connector (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  19. Check for continuity between the appropriate VSA modulator-control unit 47P connector wheel speed sensor +B and GND terminals (see chart below). DTC Appropriate Terminal + B GND 11 Right-front FR +B: No. 34 FR-GND: No. 33 13 Left-front FL +B: No. 45 FL-GND: No. 46 15 Right-rear RR +B: No. 43 RR-GND: No. 42 17 Left-rear RL +B: No. 36 RL-GND: No. 37 Is there continuity? YES -Repair a short in the wires between the appropriate wheel speed sensor and the VSA modulator-control unit. NO -Go to step 20.
  20. Check for continuity between the appropriate VSA modulator-control unit 47P connector terminal and the wheel speed sensor 2P connector terminal (see chart below). DTC VSA Modulator-Control Unit 47P Connector Terminal Appropriate Wheel Speed Sensor 2P Connector Terminal No. 2 11 FR +B: No. 34 Right-front 13 FL +B: No. 45 Left-front 15 RR +B: No. 43 Right-rear 17 RL +B: No. 36 Left-rear Is there continuity? YES -Go to step 21. NO -Repair an open in the wire between the appropriate wheel speed sensor and the VSA modulator-control unit.
  21. Check for continuity between the appropriate VSA modulator-control unit 47P connector terminal and the wheel speed sensor 2P connector terminal (see chart below). DTC VSA Modulator-Control Unit 47P Connector Terminal Appropriate Wheel Speed Sensor 2P Connector Terminal No. 1 11 FR +B: No. 33 Right-front 13 FL +B: No. 46 Left-front 15 RR +B: No. 42 Right-rear 17 RL +B: No. 37 Left-rear Is there continuity? YES - If the DTCs indicate one wheel speed sensor (either the right or left) on the same axle (front or rear), go to step 22. If the DTCs indicate both wheel speed sensors (right and left) on the same axle (front or rear), go to step 29 . NO -Repair an open in the wire between the appropriate wheel speed sensor and the VSA modulator-control unit.
  22. Swap the applicable left and right wheel speed sensors.
  23. Reconnect all connectors.
  24. Turn the ignition switch to ON (II).
  25. Clear the DTC with the HDS.
  26. Turn the ignition switch to LOCK (0).
  27. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  28. Check for DTCs with the HDS. DTCs Before Swapping DTCs After Swapping 11 (Right-front) 13 (Left-front) 13 (Left-front) 11 (Right-front) 15 (Right-rear) 17 (Left-rear) 17 (Left-rear) 15 (Right-rear) Is the DTC indicated for the opposite wheel? YES -Replace the original wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ). NO -Go to step 29.
  29. Substitute a known-good wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  30. Reconnect all connectors.
  31. Turn the ignition switch to ON (II).
  32. Clear the DTC with the HDS.
  33. Turn the ignition switch to LOCK (0).
  34. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  35. Check for DTCs with the HDS. Is DTC 11, 13, 15, or Vindicated? YES -Go to step 36. NO -Replace the original speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  36. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  37. Turn the ignition switch to LOCK (0).
  38. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  39. Check for DTCs with the HDS. Is DTC 11, 13, 15, or 17 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 12: Right-Front Wheel Speed Sensor Signal Malfunction; DTC 14: Left-Front Wheel Speed Sensor Signal Malfunction; DTC 16: Right-Rear Wheel Speed Sensor Signal Malfunction; DTC 18: Left-Rear Wheel Speed Sensor Signal Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ). If the ABS and the VSA indicators come on because of electrical noise, the indicators goes off when you test-drive the vehicle at 9 mph (15 km/h) after the system returns to normal.

Scheme 12

Scheme 12: DTC 12: Right-Front Wheel Speed Sensor Signal Malfunction; DTC 14: Left-Front Wheel Speed Sensor Sig
Scheme 12: DTC 12: Right-Front Wheel Speed Sensor Signal Malfunction; DTC 14: Left-Front Wheel Speed Sensor Sig
  1. Turn the ignition switch to LOCK (0).
  2. Check that the appropriate wheel speed sensor is properly mounted (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ). DTC Appropriate Wheel Speed Sensor 12 Right-front 14 Left-front 16 Right-rear 18 Left-rear Is the wheel speed sensor installation OK? YES -Go to step 3. NO -Reinstall the wheel speed sensor, and check the mounting position (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  3. Inspect the appropriate magnetic encoder for damage, debris, and correct installation. DTC Appropriate Magnetic Encoder Note 12 Right-front Remove the driveshaft outboard joint from the appropriate wheel hub (see «KNUCKLE/HUB/WHEEL BEARING REPLACEMENT»(ref-513180-S23540531142012110700000) ). 14 Left-front 16 Right-rear Remove the hub bearing unit (see «HUB BEARING UNIT REPLACEMENT»(ref-513203-S28005703782012110700000) ). 18 Left-rear Is the magnetic encoder OK? YES -Go to step 4. NO -Remove the debris from the magnetic encoder, or replace the wheel bearing (front) or the hub bearing unit (rear): Front: Replace the front wheel bearing (see «KNUCKLE/HUB/WHEEL BEARING REPLACEMENT»(ref-513180-S23540531142012110700000) ). Rear: Replace the rear hub bearing unit (see «HUB BEARING UNIT REPLACEMENT»(ref-513203-S28005703782012110700000) ).
  4. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  5. Check for continuity between the appropriate wheel speed sensor GND terminal and the other wheel speed sensor GND terminals of the VSA modulator-control unit 47P connector (see chart below). DTC Appropriate Terminal Other Terminals 12 FR-GND: No. 33 No. 46 No. 42 No. 37 14 FL-GND: No. 46 No. 33 No. 42 No. 37 16 RR-GND: No. 42 No. 33 No. 46 No. 37 18 RL-GND: No. 37 No. 33 No. 46 No. 42 VSA MODULATOR-CONTROL UNIT 47P CONNECTOR Is there continuity? YES -Repair a short in the wires between the appropriate wheel speed sensor and the other wheel speed sensor. NO -Go to step 6.
  6. Substitute a known-good wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  7. Reconnect all connectors.
  8. Turn the ignition switch to ON (II).
  9. Clear the DTC with the HDS.
  10. Turn the ignition switch to LOCK (0).
  11. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  12. Check for DTCs with the HDS. Is DTC 12, 14, 16, or 18 indicated? YES -Go to step 13. NO -Replace the original wheel speed sensor (see «WHEEL SPEED SENSOR REPLACEMENT»(ref-513191-S31080962662012110700000) ).
  13. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  14. Turn the ignition switch to LOCK (0).
  15. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  16. Check for DTCs with the HDS. Is DTC 12, 14, 16, or 18 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 21: Right-Front Magnetic Encoder Malfunction; DTC 22: Left-Front Magnetic Encoder Malfunction; DTC 23: Right-Rear Magnetic Encoder Malfunction; DTC 24: Left-Rear Magnetic Encoder Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the of road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 21, 22, 23, or 24 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Inspect the appropriate magnetic encoder for damage, debris, and correct installation. DTC Appropriate Magnetic Encoder Note 21 Right-front Remove the driveshaft outboard joint from the appropriate wheel hub (see «KNUCKLE/HUB/WHEEL BEARING REPLACEMENT»(ref-513180-S23540531142012110700000) ). 22 Left-front 23 Right-rear Remove the hub bearing unit (see «HUB BEARING UNIT REPLACEMENT»(ref-513203-S28005703782012110700000) ). 24 Left-rear Is the magnetic encoder surface OK? YES -Go to step 7. NO -Remove the debris from the magnetic encoder, or replace the wheel bearing (front) or the hub bearing unit (rear): Front: Replace the front wheel bearing (see «KNUCKLE/HUB/WHEEL BEARING REPLACEMENT»(ref-513180-S23540531142012110700000) ). Rear: Replace the rear hub bearing unit (see «HUB BEARING UNIT REPLACEMENT»(ref-513203-S28005703782012110700000) ).
  7. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  8. Turn the ignition switch to LOCK (0).
  9. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  10. Check for DTCs with the HDS. Is DTC 21, 22, 23, or 24 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 25: Yaw Rate Sensor Malfunction; DTC 26: Lateral Acceleration Sensor Malfunction; DTC 28: Longitudinal Acceleration Sensor Malfunction; DTC 104: Yaw Rate-Acceleration Sensor Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 13

Scheme 13: DTC 25: Yaw Rate Sensor Malfunction; DTC 26: Lateral Acceleration Sensor Malfunction; DTC 28: Longit
Scheme 13: DTC 25: Yaw Rate Sensor Malfunction; DTC 26: Lateral Acceleration Sensor Malfunction; DTC 28: Longit

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 25, 26, 28, or 104 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Check the size, air pressure, and the amount of wear of all four tires. Is the tire condition OK? YES -Go to step 7. NO -Replace the tires and/or adjust the air pressure, then recheck by test-driving.
  7. Check the YAW/G COMBINE SENSOR DIAGNOSIS in the VSA FREEZE DATA with the HDS. Is YAW/G COMBINE SENSOR DIAGNOSIS NORMAL? YES -Go to step 13 . NO -Go to step 8.
  8. Turn the ignition switch to LOCK (0).
  9. Disconnect the yaw rate-acceleration sensor 4P connector (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ).
  10. Turn the ignition switch to ON (II).
  11. Measure the voltage between yaw rate-acceleration sensor 4P connector terminals No. 1 and No. 4. Is there battery voltage? YES -Replace the yaw rate-acceleration sensor (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ). NO -Go to step 12.
  12. Measure the voltage between yaw rate-acceleration sensor 4P connector terminal No. 1 and body ground. Is there battery voltage? YES -Repair an open in the wire between the yaw rate-acceleration sensor and body ground (G502). NO -Repair an open in the wire between the yaw rate-acceleration sensor and the under-dash fuse/relay box.
  13. Turn the ignition switch to LOCK (0).
  14. Disconnect the yaw rate-acceleration sensor 4P connector (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ).
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between yaw rate-acceleration sensor 4P connector terminal No. 1 and No. 4. Is there battery voltage? YES -Go to step 18 . NO -Go to step 17.
  17. Measure the voltage between yaw rate-acceleration sensor 4P connector terminal No. 1 and body ground. Is there battery voltage? YES -Repair an open in the wire between the yaw rate-acceleration sensor and body ground (G502). NO -Repair an open in the wire between the yaw rate-acceleration sensor and the under-dash fuse/relay box.
  18. Check the wheel alignment (see «WHEEL ALIGNMENT»(ref-513157-S15229307132012110700000) ). Is the wheel alignment OK? YES -Go to step 19. NO -Make sure the suspension is not modified, and correct the wheel alignment, and recheck by test-driving.
  19. Substitute a known-good yaw rate-acceleration sensor (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ).
  20. Reconnect all connectors.
  21. Turn the ignition switch to ON (II).
  22. Clear the DTC with the HDS.
  23. Turn the ignition switch to LOCK (0).
  24. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  25. Check for DTCs with the HDS. Is DTC 25, 26, 28, or 104 indicated? YES -Go to step 26. NO -Replace the original yaw rate-acceleration sensor (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ).
  26. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  27. Turn the ignition switch to LOCK (0).
  28. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  29. Check for DTCs with the HDS. Is DTC 25, 26, 28, or 104 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 27: Steering Angle Sensor Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 17

Scheme 17: DTC 27: Steering Angle Sensor Malfunction
Scheme 17: DTC 27: Steering Angle Sensor Malfunction

Scheme 18

Scheme 18
Scheme 18

Scheme 19

Scheme 19
Scheme 19

Scheme 20

Scheme 20
Scheme 20

Scheme 21

Scheme 21
Scheme 21

Scheme 22

Scheme 22
Scheme 22
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 27 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Check the size, air pressure, and the amount of wear of all four tires. Is the tire condition OK? YES -Go to step 7. NO -Replace the tires and/or adjust the air pressure, then recheck by test-driving.
  7. Turn the ignition switch to LOCK (0).
  8. Disconnect the steering angle sensor 5P connector. (see «STEERING ANGLE SENSOR REPLACEMENT»(ref-513191-S09550395702012110700000) ).
  9. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  10. Turn the ignition switch to ON (II).
  11. Measure the voltage between body ground and VSA modulator-control unit 47P connector terminals No. 5 and No. 40 individually. Is there 0.1 V or more? YES -Repair a short to power in the wire between the VSA modulator-control unit and the steering angle sensor. NO -Go to step 12.
  12. Measure the voltage between body ground and VSA modulator-control unit 47P connector terminals No. 38, No. 41, and No. 30 individually. Is there 0.1 V or more? YES -Repair a short to power in the wire between the VSA modulator-control unit and the steering angle sensor. NO -Go to step 13.
  13. Turn the ignition switch to LOCK (0).
  14. Check for continuity between body ground and VSA modulator-control unit 47P connector terminals No. 5 and No. 40 individually. Is there continuity? YES -Repair a short to body ground in the wire between the VSA modulator-control unit and the steering angle sensor. NO -Go to step 15.
  15. Check for continuity between body ground and VSA modulator-control unit 47P connector terminals No. 38, No. 41, and No. 30 individually. Is there continuity? YES -Repair a short to body ground in the wire between the VSA modulator-control unit and the steering angle sensor. NO -Go to step 16.
  16. Check for continuity between VSA modulator-control unit 47P connector terminal and steering angle sensor 5P connector terminal individually (see chart below). Sign VSA Modulator-Control Unit 47P Connector Terminal Steering Angle Sensor 5P Connector Terminal SVCC No. 5 No. 5 SGND No. 1 No. 40 Is there continuity? YES -Go to step 17. NO -Repair an open in the wire between the VSA modulator-control unit and the steering angle sensor.
  17. Check for continuity between VSA modulator-control unit 47P connector terminal and steering angle sensor 5P connector terminal individually (see chart below). Sign VSA Modulator-Control Unit 47P Connector Terminal Steering Angle Sensor 5P Connector Terminal STR-A No. 41 No. 2 STR-B No. 38 No. 4 STR-Z No. 30 No. 3 Is there continuity? YES -Go to step 18. NO -Repair an open in the wire between the VSA modulator-control unit and the steering angle sensor.
  18. Check the wheel alignment (see «WHEEL ALIGNMENT»(ref-513157-S15229307132012110700000) ). Is the wheel alignment OK? YES -Go to step 19. NO -Make sure the suspension is not modified, and the steering rack is centered. Then correct the wheel alignment, and recheck by test-driving.
  19. Substitute a known-good steering angle sensor (see «STEERING ANGLE SENSOR REPLACEMENT»(ref-513191-S09550395702012110700000) ). NOTE: Make sure the steering angle sensor and combination switch is mounted properly.
  20. Reconnect all connectors.
  21. Turn the ignition switch to ON (II).
  22. Clear the DTC with the HDS.
  23. Turn the ignition switch to LOCK (0).
  24. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  25. Check for DTCs with the HDS. Is DTC 27 indicated? YES -Go to step 26. 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»(ref-513191-S09550395702012110700000) ).
  26. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  27. Turn the ignition switch to LOCK (0).
  28. Test-drive the vehicle around a number of corners. NOTE: Drive the vehicle on the road, not on a lift.
  29. Check for DTCs with the HDS. Is DTC 27 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 31, 32, 33, 34, 35, 36, 37, 38: ABS Solenoid Valve Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  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 31, 32, 33, 34, 35, 36, 37, or 38 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  5. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  6. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  7. Check for DTCs with the HDS. Is DTC 31, 32, 33, 34, 35, 36, 37, or 38 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 51: Motor Lock; DTC 52: Motor Stuck

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 23

Scheme 23: DTC 51: Motor Lock; DTC 52: Motor Stuck
Scheme 23: DTC 51: Motor Lock; DTC 52: Motor Stuck

Scheme 24

Scheme 24
Scheme 24

Scheme 25

Scheme 25
Scheme 25
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 51 or 52 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Turn the ignition switch to LOCK (0).
  7. Check the No. 58 (30 A) fuse in the under-dash fuse/relay box. Is the fuse blown? YES -Go to step 8. NO -Reinstall the checked fuse, then go to step 16 .
  8. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  9. Check for continuity between VSA modulator-control unit 47P connector terminal No. 1 and body ground. Is there continuity? YES -Repair a short to body ground in the wire between the No. 58 (30 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit. NO -Install a new No. 58 (30 A) fuse in the under-dash fuse/relay box, then go to step 10.
  10. Reconnect the VSA modulator-control unit 47P connector.
  11. Turn the ignition switch to ON (II).
  12. Clear the DTC with the HDS.
  13. Turn the ignition switch to LOCK (0).
  14. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  15. Check for DTCs with the HDS. Is DTC 51 or 52 indicated? YES -Go to step 20 . NO -Troubleshooting is complete.
  16. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  17. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 1 and body ground. Is there battery voltage? YES -Go to step 18. NO -Repair an open in the wire between the No. 58 (30 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.
  18. Check for continuity between VSA modulator-control unit 47P connector terminal No. 47 and body ground. Is there continuity? YES -Go to step 19. NO -Repair an open in the wire between the VSA modulator-control unit and body ground (G203).
  19. Reconnect the VSA modulator-control unit 47P connector.
  20. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  21. Turn the ignition switch to LOCK (0).
  22. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  23. Check for DTCs with the HDS. Is DTC 51 or 52 Indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 54: Fail-Safe Relay Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 26

Scheme 26: DTC 54: Fail-Safe Relay Malfunction
Scheme 26: DTC 54: Fail-Safe Relay Malfunction

Scheme 27

Scheme 27
Scheme 27
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 54 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Turn the ignition switch to LOCK (0).
  7. Check the No. 37 (30 A) fuse in the under-dash fuse/relay box. Is the fuse blown? YES -Go to step 8. NO -Reinstall the checked fuse, then go to step 16 .
  8. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  9. Check for continuity between VSA modulator-control unit 47P connector terminal No. 32 and body ground. Is there continuity? YES -Repair a short to body ground in the wire between the No. 37 (30 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit. NO -Install a new No. 37 (30 A) fuse in the under-dash fuse/relay box, then go to step 10.
  10. Reconnect the VSA modulator-control unit 47P connector.
  11. Turn the ignition switch to ON (II).
  12. Clear the DTC with the HDS.
  13. Turn the ignition switch to LOCK (0).
  14. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  15. Check for DTCs with the HDS. Is DTC 54 indicated? YES -Go to step 19 . NO -Troubleshooting is complete.
  16. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  17. Measure the voltage between VSA modulator-control unit 47P connector terminal No. 32 and body ground. Is there battery voltage? YES -Go to step 18. NO -Repair an open in the wire between the No. 37 (30 A) fuse in the under-dash fuse/relay box and the VSA modulator-control unit.
  18. Reconnect the VSA modulator-control unit 47P connector.
  19. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  20. Turn the ignition switch to LOCK (0).
  21. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  22. Check for DTCs with the HDS. Is DTC 54 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 61: Battery Voltage Low; DTC 62: Battery Voltage High

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ). If the vehicle has high electric load or a weak 12 volt battery, DTC 61 may be stored when starting the engine.

  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. Does the ABS indicator come on and stay on? YES -Go to step 4. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  4. Check for DTCs with the HDS. Is DTC 61 or 62 indicated? YES -Check the 12 volt battery (see «12 VOLT BATTERY TEST»(ref-513168-S00872926872012110700000) ) and the charging system indicator circuit troubleshooting (see «CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING»(ref-513150-S03692338472012110700000) ). NO -Do the appropriate troubleshooting for the DTC indicated.

DTC 64: Sensor Power Source Voltage Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 28

Scheme 28: DTC 64: Sensor Power Source Voltage Malfunction
Scheme 28: DTC 64: Sensor Power Source Voltage Malfunction
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 64 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Turn the ignition switch to LOCK (0).
  7. Disconnect the steering angle sensor 5P connector.
  8. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  9. Check for continuity between VSA modulator-control unit 47P connector terminal No. 5 and body ground. Is there continuity? YES -Repair a short to body ground in the wire between the VSA modulator-control unit and the steering angle sensor. NO -Go to step 10.
  10. Reconnect all connector.
  11. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  12. Turn the ignition switch to LOCK (0).
  13. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  14. Check for DTCs with the HDS. Is DTC 64 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 65: Brake Fluid Level Low

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 29

Scheme 29: DTC 65: Brake Fluid Level Low
Scheme 29: DTC 65: Brake Fluid Level Low
  1. Check the brake fluid level in the master cylinder reservoir tank (see «BRAKE SYSTEM BLEEDING»(ref-513155-S25967252532012110700000) ). Is brake fluid level OK? YES -Go to step 2. NO - Inspect the brake lines and hoses for leaks (see «BRAKE HOSE AND LINE INSPECTION»(ref-513155-S09940271602012110700000) ), and repair as needed. Inspect the front brake pads (see «FRONT BRAKE PAD INSPECTION AND REPLACEMENT»(ref-513155-S27243104042012110700000) ), and the rear brake shoes (see «REAR DRUM BRAKE INSPECTION»(ref-513155-S33205294162012110700000) ), and replace any worn out brake pads or brake shoes then recheck.
  2. Turn the ignition switch to ON (II).
  3. Clear the DTC with the HDS.
  4. Turn the ignition switch to LOCK (0).
  5. Disconnect the brake fluid level switch 2P connector (see step 1 «PARKING BRAKE SWITCH TEST»(ref-513155-S04746192282012110700000) ).
  6. Turn the ignition switch to ON (II).
  7. Check for DTCs with the HDS. Is DTC 65 indicated? YES -Go to step 8. NO -Replace the master cylinder (see «MASTER CYLINDER REPLACEMENT»(ref-513155-S37980273922012110700000) ).
  8. Turn the ignition switch to LOCK (0).
  9. Disconnect the gauge control module 32P connector (see «GAUGE CONTROL MODULE REPLACEMENT»(ref-513176-S36002924502012110700000) ).
  10. Check for continuity between brake fluid level switch 2P connector terminal No. 2 and body ground. Is there continuity? YES -Repair a short to body ground in the wire between the gauge control module and the brake fluid level switch. NO -Go to step 11.
  11. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  12. Turn the ignition switch to LOCK(0), then turn it to ON (II) again.
  13. Check for DTCs with the HDS. Is DTC 65 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 66: Pressure Sensor Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ). Before you troubleshoot, check the brake pedal height, free play, and brake pedal position switch adjustment (see BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH/IDLE STOP SWITCH ADJUSTMENT ).

  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 66 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  7. Turn the ignition switch to LOCK (0).
  8. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  9. Check for DTCs with the HDS. Is DTC 66 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 68: Brake Pedal Position Switch Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Check for other system DTCs. Is another DTC indicated? YES -Do the appropriate troubleshooting for the DTC. NO -Go to step 3.
  3. Turn the ignition switch to LOCK (0).
  4. Check the brake pedal position switch (see «BRAKE PEDAL POSITION SWITCH TEST»(ref-513200-S26364479652012110700000) ), and adjustment (see «BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH/IDLE STOP SWITCH ADJUSTMENT»(ref-513155-S15629932372012110700000) ). Is the switch and adjustment OK? YES -Go to step 5. NO -Adjust the brake pedal position switch. If necessary, replace the brake pedal position switch (see «BRAKE PEDAL AND BRAKE PEDAL POSITION SWITCH/IDLE STOP SWITCH ADJUSTMENT»(ref-513155-S15629932372012110700000) ).
  5. Turn the ignition switch to ON (II).
  6. Clear the DTC with the HDS.
  7. Turn the ignition switch to LOCK (0).
  8. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  9. Check for DTCs with the HDS. Is DTC 68 indicated? YES -Go to step 10. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  10. Troubleshoot the brake pedal position switch signal circuit (see «BRAKE PEDAL POSITION SWITCH SIGNAL CIRCUIT TROUBLESHOOTING»(ref-513173-S02087717372012110700000) ). Is the brake pedal position switch circuit OK? YES -Go to step 11. NO -Repair the brake pedal position switch circuit.
  11. Reconnect all connectors.
  12. Update the PCM if it does not have the latest software (see «PCM UPDATE»(ref-513153-S08553155092012110700000) ), or substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-513169-S18138486322012110700000) ).
  13. Turn the ignition switch to ON (II).
  14. Clear the DTC with the HDS.
  15. Turn the ignition switch to LOCK (0).
  16. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  17. Check for DTCs with the HDS. Is DTC 68 indicated? YES -Check for loose terminals in the PCM connector A (49P). If the PCM was updated, substitute a known-good PCM (see «SUBSTITUTING THE PCM»(ref-513169-S18138486322012110700000) ), then retest. If the PCM was substituted, go to step 18. NO -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see «PCM REPLACEMENT»(ref-513153-S08243124262012110700000) ).
  18. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  19. Turn the ignition switch to LOCK(0).
  20. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  21. Check for DTCs with the HDS. Is DTC 68 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 81: Modulator-Control Unit Internal Circuit Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Check for other system DTCs. Is another DTC indicated? YES -Do the appropriate troubleshooting for the DTC. NO -Go to step 3.
  3. Clear the DTC with the HDS.
  4. Turn the ignition switch to LOCK (0).
  5. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  6. Check for DTCs with the HDS. Is DTC 81 indicated? YES -Go to step 7. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  7. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  8. Turn the ignition switch to LOCK (0).
  9. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  10. Check for DTCs with the HDS. Is DTC 81 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 83: PGM-FI Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Check for DTC with the HDS. Is DTC 86 indicated? YES -Do the troubleshooting for DTC 86 (see «DTC 86: F-CAN COMMUNICATION MALFUNCTION»(ref-513191-S36800264752012110700000) ). NO -Go to step 3.
  3. Clear the DTC with the HDS.
  4. Turn the ignition switch to LOCK (0).
  5. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  6. Check for DTCs with the HDS. Is DTC 83 indicated? YES -Go to step 7. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  7. Check for fuel and emissions systems DTCs with the HDS (see «GENERAL TROUBLESHOOTING INFORMATION»(ref-513169-S26774795252012110700000) ). Are any PCM DTCs indicated? YES -Do the applicable troubleshooting for the PCM. NO -Go to step 8.
  8. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  9. Turn the ignition switch to LOCK (0).
  10. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  11. Check for DTCs with the HDS. Is DTC 83 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 84: VSA Sensor Neutral Position Not Written

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Do the VSA sensor neutral position memorization (see «VSA SENSOR NEUTRAL POSITION MEMORIZATION»(ref-513191-S35076284552012110700000) ).
  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 84 indicated? YES -Go to step 5. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  5. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  6. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  7. Check for DTCs with the HDS. Is DTC 84 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 86: F-CAN Communication Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 30

Scheme 30: DTC 86: F-CAN Communication Malfunction
Scheme 30: DTC 86: F-CAN Communication Malfunction

Scheme 31

Scheme 31
Scheme 31

Scheme 32

Scheme 32
Scheme 32

Scheme 33

Scheme 33
Scheme 33

Scheme 34

Scheme 34
Scheme 34
  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Start and run the engine for at least 5 seconds.
  5. Check for DTCs with the HDS. Is DTC 86 indicated? YES -Go to step 6. NO -Check the COMMU PCM, COMMU GAUGE, and COMMU YAW RATE/G, in the VSA FREEZE DATA with the HDS. Then check the F-CAN communication lines continuity to the appropriate system or sensor and loose terminals in the appropriate system or sensor connectors.
  6. Check the COMMU PCM, COMMU GAUGE, and COMMU YAW RATE/G, in the VSA DATA LIST with the HDS. Is there any communication errors in the system or sensor? YES -Go to step 7. NO -Go to step 22 .
  7. Turn the ignition switch to LOCK (0).
  8. Short the SCS line with the HDS.
  9. Disconnect PCM connector A (49P) (see «PCM REPLACEMENT»(ref-513153-S08243124262012110700000) ).
  10. Disconnect the VSA modulator-control unit 47P connector (see step 2 ).
  11. Disconnect the gauge control module 32P connector (see step 3 «GAUGE CONTROL MODULE REPLACEMENT»(ref-513176-S36002924502012110700000) ).
  12. Disconnect the yaw rate-acceleration sensor 4P connector (see step 4 ).
  13. Check the F-CAN communication lines for continuity between the VSA modulator-control unit and the appropriate system or sensor (see chart below). Component CANL Terminal CANH Terminal VSA modulator-control unit 13 12 PCM A4 A3 Gauge Control Module 19 20 Yaw Rate-Acceleration Sensor 2 3 Is there continuity on the F-CAN communication line? YES - If the appropriate system or sensor is the yaw rate-acceleration sensor: go to step 14. If the appropriate system or sensor is not the yaw rate-acceleration sensor: go to step 18 . NO -Repair an open in the appropriate line.
  14. Check for loose terminals in the yaw rate-acceleration sensor 4P connector. Is the yaw rate-acceleration sensor 4P connectors OK? YES -Go to step 15. NO -Repair or reconnect the connector securely.
  15. Turn the ignition switch to ON (II).
  16. Measure the voltage between yaw rate-acceleration sensor 4P connector terminals No. 1 and No. 4. Is there battery voltage? YES -Replace the yaw rate-acceleration sensor (see «YAW RATE-ACCELERATION SENSOR REPLACEMENT»(ref-513191-S16689875662012110700000) ). NO -Go to step 17.
  17. Measure the voltage between yaw rate-acceleration sensor 4P connector terminal No. 1 and body ground. Is there battery voltage? YES -Repair an open in the wire between the yaw rate-acceleration sensor and body ground (G502). NO -Repair an open in the wire between the yaw rate-acceleration sensor and the under-dash fuse/relay box.
  18. Check for loose terminals in the appropriate system connectors. Are the appropriate system connectors OK? YES -Go to step 19. NO -Repair or reconnect the connector securely.
  19. Reconnect all the connectors.
  20. Start and run the engine for at least 5 seconds.
  21. Check for other system DTCs with the HDS. Is another DTC indicated? YES -Do the appropriate DTC troubleshooting. NO -Go to step 22.
  22. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  23. Turn the ignition switch to LOCK (0).
  24. Start and run the engine for at least 5 seconds.
  25. Check for DTCs with the HDS. Is DTC 86 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 91: VSA Activation Time Too Long

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 91 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  7. Turn the ignition switch to LOCK (0).
  8. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  9. Check for DTCs with the HDS. Is DTC 91 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 105: Hydraulic Unit Temperature Sensor Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 105 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  7. Turn the ignition switch to LOCK (0).
  8. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  9. Check for DTCs with the HDS. Is DTC 105 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 117: VSA OFF Switch Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

Scheme 35

Scheme 35: DTC 117: VSA OFF Switch Malfunction
Scheme 35: DTC 117: VSA OFF Switch Malfunction

Scheme 36

Scheme 36
Scheme 36
  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. Wait at least 2 minutes.
  5. Check for DTCs with the HDS. Is DTC 117 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Check the VSA OFF SWITCH in the GAUGES DATA LIST with the HDS. Does it indicate ON when the VSA OFF button is pressed, and OFF when the VSA OFF button is released? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ), and retest. NO -Go to step 7.
  7. Check the VSA OFF switch (see «VSA OFF SWITCH TEST/REPLACEMENT»(ref-513191-S36852338492012110700000) ). Is the VSA OFF switch OK? YES -Go to step 8. NO -Replace the VSA OFF switch (see «VSA OFF SWITCH TEST/REPLACEMENT»(ref-513191-S36852338492012110700000) ).
  8. Turn the ignition switch to LOCK (0).
  9. Disconnect the VSA OFF switch 5P connector (see step 3 ).
  10. Disconnect the gauge control module 32P connector. (see «GAUGE CONTROL MODULE REPLACEMENT»(ref-513176-S36002924502012110700000) )
  11. Check for continuity between gauge control module 32P connector terminal No. 26 and VSA OFF switch 5P connector terminal No. 2. Is there continuity? YES -Go to step 12. NO -Repair an open the wire between the gauge control module and the VSA OFF switch.
  12. Check for continuity between the VSA OFF switch 5P connector terminal No. 1 and body ground. Is there continuity? YES -Substitute a known-good gauge control module, then go to step 1 and recheck. If it is OK, replace the original gauge control module (see «GAUGE CONTROL MODULE REPLACEMENT»(ref-513176-S36002924502012110700000) ). NO -Repair an open in the wire between the VSA OFF switch and body ground (G501).

DTC 121: VSA Solenoid Valve Malfunction; DTC 122: VSA Solenoid Valve Malfunction; DTC 123: VSA Solenoid Valve Malfunction; DTC 124: VSA Solenoid Valve Malfunction

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Turn the ignition switch to ON (II).
  2. Clear the DTC with the HDS.
  3. Turn the ignition switch to LOCK (0).
  4. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  5. Check for DTCs with the HDS. Is DTC 121, 122, 123, or 124 indicated? YES -Go to step 6. NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .
  6. Update the VSA modulator-control unit if it does not have the latest software (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  7. Turn the ignition switch to LOCK (0).
  8. Test-drive the vehicle at 19 mph (30 km/h) or more. NOTE: Drive the vehicle on the road, not on a lift.
  9. Check for DTCs with the HDS. Is DTC 121, 122, 123, or 124 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated «DTCS TROUBLESHOOTING»(ref-513191-S03425435242012110700000) .

DTC 158: ECU Software Update Failure

Note. Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see HOW TO USE THE HDS (HONDA DIAGNOSTIC SYSTEM) ).

  1. Update the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-513191-S26443466162012110700000) ).
  2. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  3. Check for DTCs with the HDS. Is DTC 158 indicated? YES -Check for loose terminals in the VSA modulator-control unit 47P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit (see «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-513191-S13342410542012110700000) ). NO -Intermittent failure, the system is OK at this time. Refer to «INTERMITTENT FAILURES TROUBLESHOOTING»(ref-513191-S32948223582012110700000) .

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