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Home >> Mazda >> 2006 >> 6 i, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3) >> DTC P0564 >> Diagnostic Procedure

Diagnostic Procedure

DTC P0564 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY RELATED REPAIR INFORMATION AVAILABILITY 
  • Check for related Service Bulletins and/or online 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.
2 INSPECT CRUISE CONTROL SWITCH CONNECTOR FOR POOR CONNECTION 
  • Turn the ignition switch off.
  • Inspect for poor connection (such as damaged, pulled-put terminals, corrosion).
  • Is there any malfunction?
 Yes Repair or replace suspected terminal, then go to Step 6.
No Go to the next step.
3 INSPECT CRUISE CONTROL SWITCH SIGNAL CIRCUIT FOR SHORT TO GND 
  • Disconnect cruise control switch and PCM connectors.
  • Inspect continuity between cruise control switch terminal B (wiring harness-side) and body GND.
  • Is there continuity?
 Yes Repair or replace short to GND, then go to Step 6.
No Go to the next step.
4 INSPECT CRUISE CONTROL SWITCH SIGNAL CIRCUIT FOR SHORT TO POWER 
  • Turn ignition switch to ON (Engine off).
  • Inspect voltage between cruise control switch terminal (wiring harness-side) and body GND.
  • Is voltage below 1.0 V? 
 Yes Go to the next step.
No Repair or replace short to power supply, then go to Step 6.
5 INSPECT CRUISE CONTROL SWITCH OPERATION 
 Yes Go to the next step.
No Replace cruise control switch, then go to the next step.
6 VERIFY TROUBLESHOOTING OF P0564 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the WDS or equivalent.
  • Drive vehicle with cruise control 2 min. or more. 
  • Is same DTC present?
 Yes Replace PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION ).
No Go to the next step.
7 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE ).
No Troubleshooting completed.
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