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Diagnostic procedure

DTC P00B3:00 (LF, L5) DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 VERIFY SNAPSHOT DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED 
  • Have the snapshot data and DIAGNOSTIC MONITORING TEST RESULTS (engine cooling system related) been recorded?
 Yes Go to the next step.
No Record the snapshot data and DIAGNOSTIC MONITORING TEST RESULTS on 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 ECT SENSOR NO. 2 CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the ECT sensor No. 2 connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the terminal and/or connector, then go to Step 8.
No Go to the next step.
4 INSPECT PCM CONNECTOR CONDITION 
  • Disconnect the PCM connector.
  • Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
  • Is there any malfunction?
 Yes Repair or replace the terminal and/or connector, then go to Step 8.
No Go to the next step.
5 VERIFY PID DATA FOR ECT SENSOR NO. 2 MALFUNCTION 
  • Connect the M-MDS to the DLC-2.
  • Access the ECT2 PID using the M-MDS.

    (See ON-BOARD DIAGNOSTIC TEST .)

  • Verify the ECT2 value when disconnecting ECT sensor No. 2 connector.
  • Is the ECT2 value normal?

    (See PCM INSPECTION .)

 Yes Go to the next step.
No Replace the ECT sensor No. 2, then go to Step 8. (See ENGINE COOLANT TEMPERATURE (ECT) SENSOR REMOVAL/INSTALLATION .)
6 INSPECT ECT SENSOR NO. 2 SIGNAL CIRCUIT FOR SHORT TO GROUND 
  • ECT sensor No. 2 and PCM connectors are disconnected.
  • Inspect for continuity between ECT sensor No. 2 terminal A (wiring harness-side) and body ground.
  • Is there continuity?
 Yes Repair or replace the wiring harness for a possible short to ground, then go to Step 8.
No Go to the next step.
7 INSPECT ECT SENSOR NO. 2 SIGNAL AND GROUND CIRCUITS FOR SHORT TO EACH OTHER 
  • ECT sensor No. 2 and PCM connectors are disconnected.
  • Inspect for continuity between ECT sensor terminals A and B (wiring harness-side).
  • Is there continuity?
 Yes Repair or replace the malfunctioning wiring harness, then go to the next step.
No Go to the next step.
8 VERIFY DTC TROUBLESHOOTING 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.
9 VERIFY AFTER REPAIR PROCEDURE  Yes Go to the applicable DTC inspection.
(See DTC TABLE .)
No DTC troubleshooting completed.
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