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HOMESERVICE MANUALSMAZDA2006B4000 BASE, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTHEADLIGHTSTROUBLESHOOTING (LIGHTING SYSTEM)PINPOINT TEST 3: ONE TURN SIGNAL/HAZARD LAMP IS ALWAYS ONPOSSIBLE CAUSES
2006 Mazda B4000 Base, Automatic

Possible Causes

2006 Mazda B4000 Base, AutomaticSECTION Possible Causes
  • Circuit (W/LB) short to voltage
  • Circuit (LG/W) short to voltage
  • Circuit (O/LB) short to voltage
  • Circuit (LG/O) short to voltage
  • Multifunction switch
TURN SIGNAL/HAZARD LAMP ALWAYS ON PINPOINT TEST REFERENCE

PINPOINT TEST 3 ONE TURN SIGNAL/HAZARD LAMP IS ALWAYS ON
STEP INSPECTION ACTION
1 CHECK THE STOPLAMPS
  • Key ON.
  • Apply and release the brake pedal while observing the stoplamps.
  • Do the stoplamps operate correctly? 
 Yes Go to next step.
No See STOPLAMPS  .
2 CHECK THE TURN SIGNAL SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE
  • Key OFF.
  • Disconnect: Multifunction switch 0918-105.
  • Key ON.
  • Does the turn/hazard lamp continue to illuminate? 
 Yes If the LH front turn lamp is always on, repair circuit (LG/W) for a short to voltage. Test the system for normal operation.
If the RH front turn lamp is always on, repair circuit (W/LB) for a short to voltage. Test the system for normal operation.
If the LH rear turn lamp is always on, repair circuit (LG/O) for a short to voltage. Test the system for normal operation.
If the RH rear turn lamp is always on, repair circuit (O/LB) for a short to voltage. Test the system for normal operation.
No Install a new multifunction switch. See STEERING COLUMN MULTIFUNCTION SWITCH . Test the system for normal operation.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.