CHECK AT ENGINE-ECU TERMINAL <4B1>



1.
2.


Engine-ECU terminal No.
(Special tool check connector terminal No.)
Check item
Check condition
Normal condition
10
(64-pin connector 10)
Throttle position sensor (main)

  • Remove the air cleaner intake hose at the throttle body side.
  • Disconnect the throttle position sensor connector, and then connect terminal numbers No. 3, No. 4, No. 5 and No. 6 with the use of the special tool test harness (MB992143).
  • Ignition switch: "ON"

Fully close the throttle valve with your finger.
0.3 - 0.7 V
Fully open the throttle valve with your finger.
4.0 V or more
11
(64-pin connector 11)
Throttle position sensor (sub)

  • Remove the air cleaner intake hose at the throttle body side.
  • Disconnect the throttle position sensor connector, and then connect terminal numbers No. 3, No. 4, No. 5 and No. 6 with the use of the special tool test harness (MB992143).
  • Ignition switch: "ON"

Fully close the throttle valve with your finger.
4.3 - 4.7 V
Fully open the throttle valve with your finger.
0.3 - 0.7 V
12
(64-pin connector 12)
Power supply voltage applied to throttle position sensor
Ignition switch: "ON"
4.9 - 5.1 V
15
(64-pin connector 15)
Throttle actuator control motor (+)

  • Ignition switch: "ON"
  • Accelerator pedal: fully opened to fully closed

Decreases slightly from the battery voltage
16
(64-pin connector 16)
Throttle actuator control motor (-)

  • Ignition switch: "ON"
  • Accelerator pedal: fully closed to fully opened

Decreases slightly from the battery voltage
74
(48-pin connector 4)
Accelerator pedal position sensor (main)
Ignition switch: "ON"
Release the accelerator pedal
0.9 - 1.1 V
Depress the accelerator pedal.
4.0 V or more
75
(48-pin connector 5)
Power supply voltage applied to accelerator pedal position sensor (main)
Ignition switch: "ON"
4.9 - 5.1 V
77
(48-pin connector 7)
Accelerator pedal position sensor (sub)
Ignition switch: "ON"
Release the accelerator pedal.
0.4 - 0.6 V
Depress the accelerator pedal.
2.0 V or more
78
(48-pin connector 8)
Power supply voltage applied to accelerator pedal position sensor (sub)
Ignition switch: "ON"
4.9 - 5.1 V
107
(48-pin connector 37)
Cruise control switch power supply
Ignition switch: "ON"
All switches: OFF
4.7 - 5.0 V
"ON/OFF" switch: ON
0 - 0.5 V
"CANCEL" switch: ON
1.0 - 1.8 V
"COAST/SET" switch: ON
2.3 - 3.0 V
"ACC/RES" switch: ON
3.5 - 4.2 V
108
(48-pin connector 38)
Stoplight switch (brake switch)
Ignition switch: "ON"
Depress the brake pedal.
Battery positive voltage
Release the brake pedal.
1 V or less