Ignition Signal: Wiring Diagram

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Circuit Diagram - Ignition Signal - (1 Of 3) - EC-IGN/SG-01

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

Specification data are reference values and are measured between each terminal and ground.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Fig 2: Terminal Testing & Conditions Chart

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

Fig 3: Circuit Diagram - Ignition Signal - (2 Of 3) - EC-IGN/SG-02

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

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by COSULT-II.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Fig 4: Terminal Testing & Conditions Chart

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

Fig 5: Circuit Diagram - Ignition Signal - (3 Of 3) - EC-IGN/SG-03

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

Specification data are reference values and are measured between each terminal and ground. Pulse signal is measured by COSULT-II.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Fig 6: Terminal Testing & Conditions Chart

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