Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mazda >> 2007 >> 3 Mazdaspeed, 2.3 M >> Repair and Diagnosis >> Engine Performance >> System >> On-Board Diagnostic [Body Control System] >> DTC B2017 >> Diagnostic procedure

Diagnostic procedure

DTC B2017 DIAGNOSTIC PROCEDURE

STEP INSPECTION ACTION
1 INSPECT HEADLIGHT CONNECTOR 
  • Turn the ignition switch off.
  • Disconnect the headlight (LH) connectors.
  • Inspect the headlight (LH) connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
2 INSPECT PJB CONNECTOR 
  • Disconnect the PJB connector.
  • Inspect the PJB connector terminals for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Repair or replace the terminal, then go to Step 7.
No Go to the next step.
3 INSPECT HEADLIGHT CONTROL CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between following terminals:
    • PJB terminal J-01 AA (wiring harness-side) - headlight (LH) terminal A (wiring harness-side)
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open circuit, then go to Step 7.
4 INSPECT HEADLIGHT CONTROL CIRCUIT FOR SHORT TO GND 
  • Inspect for continuity between following terminals:
    • PJB terminal J-01 AA (wiring harness-side) - body GND
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to GND, then go to Step 7.
No Go to the next step.
5 INSPECT HEADLIGHT CONTROL CIRCUIT FOR SHORT TO POWER SUPPLY 
  • Turn the ignition switch to the ON position (Engine off).
  • Measure the voltage between following terminals:
    • PJB terminal J-01 AA (wiring harness-side) - body GND
  • Is the voltage B+?
Yes Repair or replace the wiring harness for a possible short to power supply, then go to Step 7.
No Go to the next step.
6 INSPECT HEADLIGHT 
  • Inspect all the headlight.
  • Is there any malfunction?
Yes Replace the headlight, then go to the next step.
No Go to the next step.
7 VERIFY TROUBLESHOOTING COMPLETED 
  • Make sure to reconnect all disconnected connectors.
  • Clear the DTC from the PJB memory using the M-MDS.
  • Perform the self-test.

    (See PJB SELF-TEST ).

  • Is the same DTC present?
Yes Replace the PJB.
(See PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION .)
No DTC troubleshooting completed.