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Home >> Mazda >> 2010 >> 5 Touring, 2.3 L >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Engine Control System L3] >> DTC P0113 >> Diagnostic procedure
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Diagnostic procedure

DTC P0113 [L3] DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY FREEZE FRAME DATA (MODE 12) HAS BEEN RECORDED 
  • Has FREEZE FRAME DATA (Mode 12) been recorded?
 Yes Go to the next step.
No Record the FREEZE FRAME DATA (Mode 12) 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 POOR CONNECTION OF IAT SENSOR CONNECTOR 
  • Turn the ignition switch off.
  • Disconnect the MAF/IAT sensor connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion.)
  • Is there any malfunction?
 Yes Repair or replace the replace the wiring terminal, then go to Step 9.
No Go to the next step.
4 CLASSIFY IAT SENSOR MALFUNCTION OR WIRING HARNESS MALFUNCTION 
  • Connect the M-MDS 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 the voltage below 4.84 V? 
 Yes Replace the MAF/IAT sensor, then go to Step 9.
(See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION .)
No Go to the next step.
5 INSPECT IAT SENSOR SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY 
  • Turn the ignition switch to the ON position (Engine off).
  • Measure the voltage between MAF/IAT sensor terminal D (wiring-harness-side) and body ground.
  • Is the voltage B+  ?
 Yes Repair or replace the wiring harness for short to power supply, then go to Step 9.
No Go to the next step.
6 INSPECT POOR CONNECTION OF PCM CONNECTOR 
  • Turn the ignition switch off.
  • Disconnect the PCM connector.
  • Inspect PCM terminals 1 AT and 1AV 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 for 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 the wiring harness for open circuit, then go to Step 9.
8 INSPECT IAT SENSOR GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between MAF/IAT sensor terminal E (wiring-harness-side) and PCM terminal 1AV (wiring-harness-side).
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness for open circuit, then go to the next step.
9 VERIFY TROUBLESHOOTING OF DTC P0113 COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PCM memory using the M-MDS.

    (See AFTER REPAIR PROCEDURE .)

  • Perform the KOEO/KOER self test.

    (See KOEO/KOER SELF TEST .)

  • Is the same DTC present?
 Yes Replace the 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 troubleshooting.
(See DTC TABLE .)
No Troubleshooting completed.
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