Acura TSX / Honda Accord CL. Manual - part 286

UNIT REMOVAL & INSTALLATION ). 

NO: The system is OK at this time.  

DTC 61, 62: HIGH/LOW VOLTAGE 

1. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).  

2. Turn the ignition switch ON (II). 

Does the ABS indicator come on? 

YES: Go to step 3.  

NO: The system is OK at this time.  

3. Verify the DTC. 

Is DTC 61 or 62 indicated? 

YES: Check the battery and the charging system. See GENERATORS & 
REGULATORS .  

NO: Do the appropriate troubleshooting for the DTC indicated.  

DTC 64: SENSOR POWER VOLTAGE 

1. Disconnect the VSA control unit 47P connector.  

2. Start the engine.  

3. Measure the voltage between the VSA control unit 47P connector terminal No. 35 and body ground. 

Is there 1 V or more? 

YES: Repair short to power in the wire between the VSA modulator-control unit and yaw 
rate-lateral acceleration sensor and steering angle sensor.  

NO: Go to step 4.  

 

2004 Acura TSX 

2004 BRAKES Vehicle Stability Assist System - TSX

  

 

Fig. 60: Measuring The Voltage Between The VSA Control Unit 47P Connector Terminal No. 
35 & Body Ground 

4. Check for continuity between the VSA control unit 47P connector terminal No. 35 and body ground. 

Is there continuity? 

YES: Repair short to ground in the wire between the VSA modulator-control unit and yaw 
rate-lateral acceleration sensor and steering angle sensor.  

NO: Go to step 5.  

 

2004 Acura TSX 

2004 BRAKES Vehicle Stability Assist System - TSX

  

 

Fig. 61: Checking For Continuity Between The VSA Control Unit 47P Connector Terminal 
No. 35 & Body Ground 

5. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).  

6. Disconnect the HDS from the 16P DLC.  

7. Turn the ignition switch OFF, then turn it ON again.  

8. Test-drive the vehicle. 

Does the ABS indicator come on, and is DTC 64 indicated? 

YES: Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL 
UNIT REMOVAL & INSTALLATION ).  

NO: Intermittent failure, the system is OK at this time. Check connections at the VSA 
control unit 47P connector and G203.  

DTC 65: BRAKE FLUID LEVEL 

1. Check the brake fluid level. 

Is the level correct? 

 

2004 Acura TSX 

2004 BRAKES Vehicle Stability Assist System - TSX

  

 

YES: Go to step 2.  

NO: Refill the brake fluid, and recheck.  

2. Check for short in the GRN/RED wire between the gauge control module and the brake fluid level switch. 

If OK, check the brake fluid level switch. 

Is the switch OK? 

YES: Do the troubleshooting for the gauge control module (see SELF-DIAGNOSTIC 
PROCEDURE ).  

NO: Replace the brake fluid level switch.  

DTC 66: VSA PRESSURE SENSOR (INSIDE OF VSA MODULATOR-CONTROL UNIT) 

1. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).  

2. Disconnect the HDS from the 16P DLC.  

3. Turn the ignition switch OFF, then turn it ON (II) again.  

4. Test-drive the vehicle. 

Does the ABS indicator come on, and is DTC 66 indicated? 

YES: Go to step 5.  

NO: The system is OK at this time.  

5. Do the VSA sensor neutral position memorization (see VSA SENSOR NEUTRAL POSITION 

MEMORIZATION ).  

6. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ).  

7. Disconnect the HDS from the 16P DLC.  

8. Turn the ignition switch OFF, then turn it ON (II) again.  

9. Test-drive the vehicle. 

Does the ABS indicator come on, and is DTC 66 indicated? 

YES: Replace the VSA modulator-control unit (see VSA MODULATOR-CONTROL 
UNIT REMOVAL & INSTALLATION ).  

NO: The system is OK at this time.  

DTC 68: BRAKE PEDAL POSITION SWITCH 

1. Check for other DTCs. 

Is another DTC indicated? 

YES: Do the appropriate troubleshooting for the DTC.  

NO: Go to step 2.  

2. Check the brake pedal position switch. 

Is the switch OK? 

YES: Go to step 3.  

NO: Replace the brake pedal position switch (see BRAKE PEDAL ).  

3. Clear the DTC using the HDS (see HOW TO CLEAR DTCS ). 

 

2004 Acura TSX 

2004 BRAKES Vehicle Stability Assist System - TSX