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Home >> Mazda >> 2007 >> B2300 Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Troubleshooting (Instrumentation/Driver Information) >> Pinpoint Test 10: High Beam Indicator Is Never On >> Possible Causes

Possible Causes

CAUTION:
  • Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.
HIGH BEAM INDICATOR IS NEVER ON - PINPOINT TEST REFERENCE

PINPOINT TEST 10 HIGH BEAM INDICATOR IS NEVER ON
STEP INSPECTION ACTION
1 CHECK FOR CORRECT HIGH BEAM OPERATION
  • Turn the headlamp switch to the headlamps ON position.
  • Set the multifunction switch to the high beam position.
  • Do the high beams operate correctly? 
Yes Go to next step.
No See HEADLAMPS , to continue diagnosis of the high beams.
2 CHECK FOR VOLTAGE TO THE INSTRUMENT CLUSTER
  • Key OFF.
  • Disconnect: Instrument cluster 0922-101.
  • Place the headlamp switch in the HEADLAMPS ON position.
  • Place the multifunction switch in the HIGH BEAM position.
  • Key ON.
  • Measure the voltage between the instrument cluster 0922-101 pin 11, circuit (BR/R), harness side and ground.
  • Is the voltage greater than 10 volts? 
Yes Go to step 6.
No Go to next step.
3 CHECK CIRCUIT (BR/R) FOR AN OPEN
  • Key OFF.
  • Place the headlamp switch in the HEADLAMPS OFF position.
  • Disconnect: SJB J-2280a.
  • Measure the resistance between the instrument cluster 0922-101 pin 11, circuit (BR/R), harness side and the SJB J-2280a pin 21, circuit (BR/R), harness side.
  • Is the resistance less than 5 ohms? 
Yes Go to next step.
No Repair circuit (BR/R) for an open. Test the system for normal operation.
4 CHECK THE GROUND TO THE INSTRUMENT CLUSTER
  • Key OFF.
  • Disconnect: Instrument cluster 0922-102.
  • Measure the resistance between the instrument cluster 0922-102 pin 1, circuit (B/Y), harness side and ground.
  • Is the resistance less than 5 ohms? 
Yes Go to next step.
No REPAIR the circuit. TEST the system for normal operation.
5 CHECK FOR CORRECT SJB OPERATION
  • Disconnect all the SJB connectors.
  • Check for:
    • corrosion
    • damaged pins
    • pushed-out pins
  • Connect all the SJB connectors and make sure they seat correctly.
  • Operate the system and verify the concern is still present.
  • Is the concern still present? 
Yes Install a new SJB. See SMART JUNCTION BOX (SJB) , . Test the system for normal operation.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
6 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
  • Disconnect all the instrument cluster connectors.
  • Check for:
    • corrosion
    • damaged pins
    • pushed-out pins
    • incorrectly installed bulb sockets
    • burnt-out bulbs
  • Connect all the instrument cluster connectors and make sure they seat correctly.
  • Operate the system and verify the concern is still present.
  • Is the concern still present? 
Yes Install a new instrument cluster. see INSTRUMENT CLUSTER . Test the system for normal operation.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.