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Home >> Mazda >> 2012 >> 6 i Touring >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (On-Board Diagnostic [Engine Controls MZI 3.7] (5 Of 5)) >> DTC P1464:00 >> Diagnostic Procedure

Diagnostic Procedure

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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 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 Service Bulletins available?
 Yes Perform repair or diagnosis according to the available Service Bulletins.
  • If the vehicle is not repaired, go to the next step.
No Go to the next step.
3 VERIFY A/C AND DEFROST ARE OFF DURING SELF-TEST 
  • Perform the KOEO or KOER self-test.

    (See KOEO/KOER SELF TEST .)

  • Are the A/C and defrost off during the self-test?
 Yes Go to the next step.
No Turn the A/C and defrost off. Then go to Step 5.
4 INSPECT ACCS PID 
  • Switch the ignition ON (Engine off).
  • A/C and defroster OFF.
  • Access the PCM and monitor the ACCS PID.
  • Is the PID state ON?
 Yes The ACCS PID indicates that the PCM is being requested to turn on the A/C. Inspect the A/C system.
(See A/C OPERATION CHECK MODE TABLE .)
Then go to the next step.
No The ACCS PID indicates that the ACCS input to the PCM is low.
Inspect the following:
  • Short to power supply circuit between PCM terminal 1W and A/C relay
  • A/C relay

Repair or replace if necessary.
Go to the next step.
5 VERIFY TROUBLESHOOTING OF DTC P1464:00 HAS BEEN COMPLETED 
  • Verify that all disconnected connectors reconnected.
  • Clear the DTC from the PCM memory using the M-MDS.
  • Perform the KOEO or KOER self-test.

    (See KOEO/KOER SELF TEST .)

  • Is the PENDING CODE for the DTC present?
 Yes Repeat the inspection from Step 1.

Go to the next step.
No Go to the next step.
6 VERIFY AFTER REPAIR PROCEDURE 
 Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No Troubleshooting completed.
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