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Home › Mazda › 2013 › CX-5 Touring, AWD › Repair and Diagnosis › Engine Performance › System › On-Board Diagnostic (Engine Controls) (3 Of 4) › DTC P0629-00: Fuel Pump Control Module Circuit High Input › Diagnostic Procedure

Diagnostic Procedure

DTC P062900 (SKYACTIV-G 2.0) DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED 
  • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?
 Yes Go to the next step.
No Record the FREEZE FRAME DATA (Mode 2)/snapshot data on the repair order, then go to the next step.
2 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Verify related Service Bulletins and/or on-line repair information availability.
  • Is any related repair information available?
 Yes Perform repair or diagnosis according to the available repair information.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 INSPECT FUEL PUMP UNIT CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the fuel pump unit connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector and/or terminals, then go to Step 8.
No Go to the next step.
4 INSPECT FUEL PUMP UNIT 
 Yes Replace the fuel pump unit, then go to Step 8.
(See FUEL PUMP UNIT REMOVAL/INSTALLATION [SKYACTIV-G 2.0] ).
No Go to the next step.
5 INSPECT FUEL PUMP CONTROL MODULE CONNECTOR CONDITION 
  • Disconnect the fuel pump control module connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the connector and/or terminals, then go to Step 8.
No Go to the next step.
6 INSPECT FUEL PUMP UNIT CIRCUIT FOR SHORT TO POWER SUPPLY 
  • Verify that the fuel pump unit and fuel pump control module connectors are disconnected.
  • Switch the ignition ON (engine off or on).
  • Measure the voltage at the following terminals (wiring harness-side):
    • Fuel pump unit terminal A
    • Fuel pump unit terminal B
  • Is the voltage 0 V  ?
 Yes Go to the next step.
No Repair or replace the wiring harness for a possible short to power supply, then go to Step 8.
7 INSPECT FUEL PUMP CONTROL MODULE 
 Yes Replace the fuel pump control module, then go to the next step.
(See FUEL PUMP CONTROL MODULE REMOVAL/INSTALLATION [SKYACTIV-G 2.0] ).
No Go to the next step.
8 VERIFY DTC TROUBLESHOOTING COMPLETED 
 Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
9 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE [SKYACTIV-G 2.0] ).
No DTC troubleshooting completed.
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