Throttle Control Module (TCM)

On harness side measure voltage between terminals No. 10 or 20, and terminals No. 2, 3, 4, 5, 7, 14 and 15. See Figure and Fig 1 . See TCM INSPECTION TABLE in this article.

Fig 1: Identifying TCM Location

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Identifying Harness Side Terminals

Courtesy of NISSAN MOTOR CO., U.S.A.

TCM INSPECTION

Terminal No.

Item

Condition

⁽¹⁾ Data

Throttle Opening Signal

Ignition On

Approximately 0.3-3.3 Volts Voltage Varies With Throttle

Secondary Throttle Sensor

Vehicle Running

Opening Angle. Approximately 0.4-4.4 Volts Voltage Varies With Secondary Throttle Valve Opening Angle.

Secondary Throttle Signal

Vehicle Running

Approximately 0.3-3.3 Volts Voltage Is 3/4 Of Voltage At Secondary Throttle Sensor.

Engine Temp. Sensor For TCM

Engine Running

Approximately 0-5 Volts Voltage Varies With Engine Temp.

TCS Switch

Ignition On

Approximately 10 Volts

Throttle Motor Relay

Ignition On

Approximately 1.5 Volts

Power Supply For Sensor

Ignition On

Approximately 5 Volts

⁽¹⁾	Data are reference values.