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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 P0113 >> Diagnostic Procedure

Diagnostic Procedure

DTC P0113 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA HAS BEEN RECORDED 
  • Has FREEZE FRAME DATA been recorded?
 Yes Go to the next step.
No Record FREEZE FRAME DATA on repair order, then go to the next step.
2 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.
3 INSPECT IAT SENSOR CONNECTOR FOR POOR CONNECTION 
  • Turn the ignition switch off.
  • Disconnect MAF/IAT sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
4 CLASSIFY IAT SENSOR MALFUNCTION OR HARNESS MALFUNCTION 
  • Connect WDS or equivalent to DLC-2.
  • Access IAT PID.
  • Connect a jumper wire between MAF/IAT sensor terminals D and E (wiring harness-side)
  • Verify IAT value.
  • Is voltage below 4.9 V  ?
 Yes Replace MAF/IAT sensor, then go to Step 9.
No Go to the next step.
5 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY 
  • Turn ignition switch to ON (Engine off).
  • Measure voltage between MAF/IAT sensor terminal D (wiring harness-side) and body ground.
  • Is voltage B+  ?
 Yes Repair or replace harness for short to power supply, then go to Step 9.
No Go to the next step.
6 INSPECT PCM CONNECTOR FOR POOR CONNECTION 
  • Turn the ignition switch off.
  • Disconnect PCM connector.
  • Inspect PCM terminals 1 AT and 1AR (wiring harness-side) for tightness using feeler tool.
  • Is there any malfunction?
 Yes Repair or replace the terminal, then go to Step 9.
No Go to the next step.
7 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR OPEN CIRCUIT 
  • Inspect continuity between MAF/IAT sensor terminal D (wiring harness-side) and PCM terminal 1AT (wiring harness-side).
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace harness for open circuit, then go to Step 9.
8 INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect continuity between MAF/IAT sensor terminal E (wiring harness-side) and PCM terminal 1AR (wiring harness-side).
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace harness for open circuit, then go to the next step.
9 VERIFY TROUBLESHOOTING OF DTC P0113 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Turn ignition switch to ON (Engine off).
  • Clear the DTC from the PCM memory using the WDS or equivalent.
  • Start engine and warm it up completely.
  • Is same DTC present?
 Yes Replace PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION ).
No Go to the next step.
10 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE ).
No Troubleshooting completed.
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