TRITON 4G year 2006-2007

• Twitter
• Facebook
• Snapchat
• Instagram
• Medium

CHECK AT THE ECU TERMINALS

---

TERMINAL VOLTAGE CHECK CHART

1.Connect a needle-nosed wire probe to a voltmeter probe. 2.Insert the needle-nosed wire probe into each of the engine-ECU connector terminals from the wire side, and measure the voltage while referring to the check chart. note Make the voltage measurement with the engine-ECU connector connected. You may find it convenient to pull out the engine-ECU to make it easier to reach the connector terminals. The checks can be carried out off the order given in the chart. caution Short-circuiting the positive (+) probe between a connector terminal and earth could damage the vehicle wiring, the sensor, engine-ECU or all of them. Be careful to prevent this! 3.If voltmeter shows any division from standard value, check the corresponding sensor, actuator and related electrical wiring, then repair or replace. 4.After repair or replacement, recheck with the voltmeter to confirm that the repair has corrected the problem. Terminal No. Check item Inspection condition (engine status) Normal condition: 11 Engine check lamp Ignition switch: LOCK (OFF) → ON 1 V or lower → System voltage (after 5 seconds have elapsed) 13 A/C load signal <automatic A/C> When the A/C is under low load System voltage When the A/C is under high load 1 V or lower 14 PTC heater switch (Warm up switch) <vehicle with PTC heater> Ignition switch: ON Heater switch (Warm up switch): OFF 1 V or lower Heater switch (Warm up switch): ON System voltage 15 A/C switch Engine: Idle speed (after warning up) A/C switch: OFF 1 V or lower A/C switch: ON System voltage 17 Suction control valve (positive) Engine: Idling 2 - 3 V* Engine: Acceleration Increases 19 EGR motor (positive) Engine: Idling (after warning up) 1.8 V or higher* Engine: 3,500 r/min (after warning up) 1.6 V or lower* 28 Glow lamp Ignition switch: OFF → ON Engine coolant temperature: lower than 60 °C 1 V or lower → System voltage (after several seconds have elapsed) 29 Glow plug relay Ignition switch: OFF → ON Engine coolant temperature: lower than 60 °C 1 V or lower → System voltage (after several seconds have elapsed) Engine coolant temperature: higher than 60 °C System voltage 35 PTC heater control signal <vehicle with PTC heater> Heater temperature setting: Maximum Blower fan: ON System voltage Other than the above 1 V or lower 38 PTC heater relay 1 <vehicle with PTC heater> Engine coolant temperature: lower than 75°C Heater temperature setting: Maximum Blower fan: ON 2 seconds later after the engine has start up 1 V or lower Other than the above System voltage 39 Condenser fan relay Ignition switch: ON A/C switch: OFF (Engine coolant temperature: lower than 95 °C) System voltage A/C switch: ON and Vehicle speed is lower than 60km/h 1 V or lower 40 A/C relay Engine: Idle speed (after warning up) A/C switch: OFF System voltage A/C switch: ON A/C compressor is not driven System voltage A/C compressor is driven 1 V or lower 41 PTC heater relay 2 <vehicle with PTC heater> Engine coolant temperature: lower than 75°C Heater switch (warm up switch) is ON or vehicle speed is 20km/h or more Blower fan: ON Heater temperature setting: Maximum 2 seconds later after the engine has start up The PTC heater 1 has been ON continuously 45 seconds or more 1 V or lower Other than the above System voltage 49 Intake air temperature sensor No. 1 Ignition switch: ON Intake air temperature: -20 °C 4.0 - 4.6 V Intake air temperature: 0 °C 3.1 - 3.7 V Intake air temperature: 20 °C 2.1 - 2.7 V Intake air temperature: 40 °C 1.2 - 1.8 V Intake air temperature: 60 °C 0.6 - 1.2 V Intake air temperature: 80 °C 0.2 - 0.8 V 50 Air flow sensor Engine: Gradually increase the speed Voltage increase 51 EGR position sensor Engine: Idling (after warning up) 2.0 V or higher Engine: 3,500 r/min (after warning up) 1.5 V or lower 52 Manifold absolute pressure sensor Ignition switch: ON 0.7 -1.2 V Engine: Acceleration Increases 53 Engine coolant temperature sensor Ignition switch: ON Engine coolant temperature: -20 °C 4.4 -4.9 V Engine coolant temperature: 0 °C 4.0 - 4.6 V Engine coolant temperature: 20 °C 3.3 - 3.9 V Engine coolant temperature: 40 °C 2.4 - 3.0 V Engine coolant temperature: 60 °C 1.5 - 2.1 V Engine coolant temperature: 80 °C 0.9 - 1.5 V 54 Fuel temperature sensor Ignition switch: ON Fuel temperature: -20 °C 3.9 - 4.5 V Fuel temperature: 0 °C 3.1 - 3.7 V Fuel temperature: 20 °C 2.1 - 2.7 V Fuel temperature: 40 °C 1.2 - 1.8 V Fuel temperature: 60 °C 0.6 - 1.2 V Fuel temperature: 80 °C 0.2 - 0.8 V 56 Rail pressure sensor Engine: Idling (after warning up) 1.15 - 1.75 V 57 Camshaft position sensor Engine: Cranking 2.0 - 4.9 V* Engine: Idling 3.5 - 4.5 V* 58 Crank angle sensor Engine: Cranking 1.5 - 4.5 V* Engine: Idling 2.5 - 3.5 V* 59 Camshaft position sensor power supply Ignition switch: ON 4.9 - 5.1 V 60 Crank angle sensor power supply Ignition switch: ON 4.9 - 5.1 V 65 Intake air temperature sensor No. 2 Ignition switch: ON Intake air temperature: -20 °C 4.0 - 4.6 V Intake air temperature: 0 °C 3.1 - 3.7 V Intake air temperature: 20 °C 2.1 - 2.7 V Intake air temperature: 40 °C 1.2 - 1.8 V Intake air temperature: 60 °C 0.6 - 1.2 V Intake air temperature: 80 °C 0.3 - 0.9 V 80 Sensor source Ignition switch: ON 4.9 - 5.1 V 81 Rail pressure sensor power supply Ignition switch: ON 4.9 - 5.1 V 92 Ignition switch-IG Ignition switch: ON System voltage 96 Power steering switch Engine: Idling When steering wheel is stationary System voltage When steering wheel is turned 1 V or lower 99 Battery Ignition switch: ON System voltage 100 101 Battery (backup with monitor) Ignition switch: ON System voltage 102 Fuel filter pressure switch <Vehicle with fuel filter pressure switch> Ignition switch: ON System voltage Engine: Idling Squeeze the fuel hose with one’s fingers at the inlet side of the fuel filter. 1 V or less 103 Ignition switch-ST Engine: Cranking System voltage 104 First shift switch <M/T> Ignition switch: ON Shift position: 1st System voltage Shift position: Except 1st 1 V or lower 105 Reverse shift switch <M/T> Ignition switch: ON Shift position: Reverse System voltage Shift position: Except reverse 1 V or lower 109 Engine control relay Ignition switch: LOCK (OFF) System voltage Ignition switch: ON 1 V or lower 111 Throttle valve control servo (-) Engine: Idling Approximately 2 V lower than system voltage* Engine: Stopped from idling speed Voltage changed for few seconds 112 Accelerator pedal position sensor (sub) power supply Ignition switch: ON 4.9 - 5.1 V 113 Accelerator pedal position sensor (sub) Ignition switch: ON Release the accelerator pedal 0.2 - 0.8 V Depress the accelerator pedal fully 2.0 V or higher 119 Vehicle speed sensor Ignition switch: ON Move the vehicle forward slowly 0 <=> 5 V Changes repeatedly 120 Accelerator pedal position sensor (main) power supply Ignition switch: ON 4.9 - 5.1 V 121 Accelerator pedal position sensor (main) Ignition switch: ON Release the accelerator pedal 0.7 - 1.3 V Depress the accelerator pedal fully 4.0 V or higher 124 Throttle position sensor Engine: Idling 3.7 V or higher 130 Throttle valve control servo (+) Engine: Idling System voltage Engine: Stopped from idling speed Voltage changed for few seconds note *: The average voltage is shown when an analog voltmeter is used (because the average voltage might not be shown stably when digital voltmeter is used).

Engine-ECU Connector Terminal Arrangement

---

CHECK CHART FOR RESISTANCE AND CONTINUITY BETWEEN TERMINALS

1.Turn the ignition switch to "LOCK" (OFF) position.

2.Disconnect the engine-ECU connector.

3.Measure the resistance and check for continuity between the terminals of the engine-ECU harness-side connector while referring to the check chart. note When measuring resistance and checking continuity, a harness for checking contact pin pressure should be used instead of inserting a test probe. Checking need not be carried out in the order given in the chart. caution If the terminals that should be checked are mistaken, or if connector terminals are not correctly shorted to earth, damage may be caused to the vehicle wiring, sensors, engine-ECU and/or ohmmeter. Be careful to prevent this!

4.If the ohmmeter shows any deviation from the standard value, check the corresponding sensor, actuator and related electrical wiring, and the repair or replace.

5.After repair or replacement, recheck with the ohmmeter to confirm that the repair or replacement has corrected the problem.

Engine-ECU Harness Side Connector Terminal Arrangement

Terminal No. Inspection item Normal condition (Check condition) 17 - 37 Suction control valve Approximately 2.1 Ω (at 20°C) 22 - Body earth Engine-ECU earth Continuity (2 Ω or less) 61 - Body earth 49 - 70 Intake air temperature sensor No.1 13 - 17 kΩ (when the intake air temperature is -20°C) 5.4 - 6.6 kΩ (when the intake air temperature is 0°C) 2.3 - 3.0 kΩ (when the intake air temperature is 20°C) 1.0 - 1.5 kΩ (when the intake air temperature is 40°C) 0.56 - 0.76 kΩ (when the intake air temperature is 60°C) 0.31 - 0.43 kΩ (when the intake air temperature is 80°C) 53 - 74 Engine coolant temperature sensor 14 - 17 kΩ (when the engine coolant temperature is -20°C) 5.1 - 6.5 kΩ (when the engine coolant temperature is 0°C) 2.1 - 2.7 kΩ (when the engine coolant temperature is 20°C) 0.9 - 1.3 kΩ (when the engine coolant temperature is 40°C) 0.48 - 0.68 kΩ (when the engine coolant temperature is 60°C) 0.26 - 0.36 kΩ (when the engine coolant temperature is 80°C) 54 - 75 Fuel temperature sensor 2.0 - 3.0 kΩ (at 20 °C) 65 - 75 Intake air temperature sensor No.2 13 - 18 kΩ (when the intake air temperature is -20°C) 5.1 - 6.9 kΩ (when the intake air temperature is 0°C) 2.0 - 3.0 kΩ (when the intake air temperature is 20°C) 0.9 - 1.5 kΩ (when the intake air temperature is 40°C) 0.40 - 0.78 kΩ (when the intake air temperature is 60°C) 0.23 - 0.42 kΩ (when the intake air temperature is 80°C) 111 - 130 Throttle valve control servo 0.3 - 100 Ω (at 20 °C)