2010 Acura Truck MDX V6-3.7L Page 515

23. Measure the voltage between body ground and the appropriate TPMS control unit 20P connector terminal (see table).

Is there battery voltage?

YES -

Repair a short to power in the wire between the TPMS control unit and the appropriate initiator.?

NO -

Replace the TPMS control unit See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure Module/Service and

Repair.?

VSA System

VSA DTC Troubleshooting: 51

DTC 51:

Motor Lock

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

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

2. Clear the DTC with the HDS.

3. Test-drive the vehicle. Drive the vehicle at 10 mph(15 km/h) or more, with the engine speed at 2,500 rpm or higher.

4. Check for DTCs with the HDS.

Is DTC 51 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for a loose connection at G303.?

5. Update the VSA modulator-control unit if it does not have the latest software See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Traction Control Module/Testing and Inspection. If the unit already has the latest software, substitute a known-good VSA

modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control Module/Service and

Repair.

6. Test-drive the vehicle. Drive the vehicle at 10 mph(15 km/h) or more, with the engine speed at 2,500 rpm or higher.

7. Check for DTCs with the HDS.

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23. Measure the voltage between body ground and the appropriate TPMS control unit 20P connector terminal (see table).

Is there battery voltage?

YES -

Repair a short to power in the wire between the TPMS control unit and the appropriate initiator.?

NO -

Replace the TPMS control unit See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure Module/Service and

Repair.?

57-xx

SRS DTC Troubleshooting: 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx

DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx ("x" can be 0 thru 9 or A thru F):

Internal Failure of the SRS Unit

NOTE:

- Before troubleshooting any of these DTCs, check the battery/system voltage and battery cable connections See: Starting and

Charging/Battery/Testing and Inspection/Component Tests and General Diagnostics/Battery Test. If the voltage is low, repair the charging

system, test and charge, or replace the battery before troubleshooting the SRS. If the battery/system voltage is now OK, ask the customer if

the battery ever went dead or if the engine was started and run with the battery in a low state of charge. A dead battery may trigger one or

more of these DTCs.

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and

Disarming/Service and Repair and General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and

Inspection/Reading and Clearing Diagnostic Trouble Codes.

- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS

unit software See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,

and retest.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to ON (II), then wait for 10 seconds.

3. Check for DTCs with the HDS.

Is DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, or 58-xx indicated?

YES -

Faulty SRS unit; replace the SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control

Module/Service and Repair/SRS Unit Replacement.?

2010 Acura Truck MDX V6-3.7L Page 528

23. Measure the voltage between body ground and the appropriate TPMS control unit 20P connector terminal (see table).

Is there battery voltage?

YES -

Repair a short to power in the wire between the TPMS control unit and the appropriate initiator.?

NO -

Replace the TPMS control unit See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure Module/Service and

Repair.?

VSA System

VSA DTC Troubleshooting: 53

DTC 53:

Motor Stuck

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

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

Is the pump motor running?

YES -

Replace the VSA modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control

Module/Service and Repair.?

NO -

Go to step 2.

2. Turn the ignition switch to LOCK (0).

3. Disconnect the VSA modulator-control unit 46P connector.

4. Check for continuity between VSA modulator-control unit 46P connector terminal No. 46 and body ground.

2010 Acura Truck MDX V6-3.7L Page 544

23. Measure the voltage between body ground and the appropriate TPMS control unit 20P connector terminal (see table).

Is there battery voltage?

YES -

Repair a short to power in the wire between the TPMS control unit and the appropriate initiator.?

NO -

Replace the TPMS control unit See: Instrument Panel, Gauges and Warning Indicators/Tire Monitoring System/Tire Pressure Module/Service and

Repair.?

55-xx

SRS DTC Troubleshooting: 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx

DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, 58-xx ("x" can be 0 thru 9 or A thru F):

Internal Failure of the SRS Unit

NOTE:

- Before troubleshooting any of these DTCs, check the battery/system voltage and battery cable connections See: Starting and

Charging/Battery/Testing and Inspection/Component Tests and General Diagnostics/Battery Test. If the voltage is low, repair the charging

system, test and charge, or replace the battery before troubleshooting the SRS. If the battery/system voltage is now OK, ask the customer if

the battery ever went dead or if the engine was started and run with the battery in a low state of charge. A dead battery may trigger one or

more of these DTCs.

- Before doing this troubleshooting procedure, review SRS Precautions and Procedures See: Body and Frame/Air Bag(s) Arming and

Disarming/Service and Repair and General Troubleshooting Information See: Restraints and Safety Systems/Air Bag Systems/Testing and

Inspection/Reading and Clearing Diagnostic Trouble Codes.

- Before replacing the SRS unit, check the SRS unit software version with the HDS. If the software version is not the latest, update the SRS

unit software See: Restraints and Safety Systems/Air Bag Systems/Testing and Inspection/Programming and Relearning/SRS Unit Update,

and retest.

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to ON (II), then wait for 10 seconds.

3. Check for DTCs with the HDS.

Is DTC 51-xx, 52-xx, 53-xx, 54-xx, 55-xx, 57-xx, or 58-xx indicated?

YES -

Faulty SRS unit; replace the SRS unit See: Relays and Modules/Relays and Modules - Restraints and Safety Systems/Air Bag Control

Module/Service and Repair/SRS Unit Replacement.?