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HOMESERVICE MANUALSMAZDA2005B2300 AUTOMATICREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSSYMPTOM TROUBLESHOOTING [ENGINE)SYMPTOM TROUBLESHOOTING CHART - CRUISE CONTROLSYMPTOM TROUBLESHOOTING CHARTCRUISE CONTROL SYSTEM PINPOINT TEST 8: FLASH CODE 3 - DEACTIVATOR SWITCH FAILURE
2005 Mazda B2300 Automatic

Cruise Control System Pinpoint Test 8: Flash Code 3 - DEACTIVATOR Switch Failure

2005 Mazda B2300 AutomaticSECTION Cruise Control System Pinpoint Test 8: Flash Code 3 - DEACTIVATOR Switch Failure
PINPOINT TEST 8 - FLASH CODE 3 - DEACTIVATOR SWITCH FAILURE

PINPOINT TEST 8 FLASH CODE 3 - DEACTIVATOR SWITCH FAILURE
STEP INSPECTION ACTION
1 CHECK THE DEACTIVATOR SWITCH CIRCUITRY
  • Key in OFF position.
  • Disconnect: Speed Control Servo 0120-101.
  • Key in ON position.
  • Measure the voltage between the speed control servo 0120-101 pin 9, circuit B/Y, harness side and the speed control servo 0120-101 pin 10, circuit B, harness side.
  • Is the voltage greater than 10 volts? 
 Yes Go to next step.
No Install a new cruise control servo.
See CRUISE CONTROL SERVO REMOVAL/INSTALLATION .
2 CHECK DEACTIVATOR SWITCH POWER
  • Key in OFF position.
  • Disconnect: Brake Pressure Switch 0120-04.
  • Key in ON position.
  • Measure the voltage between the brake pressure switch 0120-04 pin 1, circuit LB/R, harness side and ground.
  • Is the voltage greater than 10 volts? 
 Yes Go to next step.
No Repair the circuit in question. Test the system for normal operation. See SYMPTOM TROUBLESHOOTING CHART - CRUISE CONTROL  .
3 CHECK CIRCUIT B/Y FOR AN OPEN
  • Key in OFF position.
  • Measure the resistance between the speed control servo 0120-101 pin 9, circuit B/Y, harness side and the brake pressure switch 0120-04 pin 2, circuit B/Y, harness side.
  • Is the resistance less than 5 ohms? 
 Yes Install a new deactivator switch.
See CRUISE CONTROL DEACTIVATOR SWITCH REMOVAL/INSTALLATION . Test the system for normal operation. See SYMPTOM TROUBLESHOOTING CHART - CRUISE CONTROL  .
No Repair the circuit. Test the system for normal operation. See SYMPTOM TROUBLESHOOTING CHART - CRUISE CONTROL  .
G03728050Courtesy of MAZDA MOTORS CORP.
G03728051Courtesy of MAZDA MOTORS CORP.
RENDER: 1.0x

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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.