Standard voltage values at the ECM unit contacts
Preparing for measurements
1. The ECM is located on the left side of the engine compartment.
2. Remove the protective cover from the ECM wiring.
3. When disconnecting the connector from the ECM, loosen it using levers as shown in the figure.
4. Connect the junction box (special tool) and Y-cable adapter (special tool) between the ECM and the ECM connector.
Do not touch 2 contacts at the same time.
This data is for comparison purposes and may not be accurate.
ECM Check Table
The data shown are typical values and are measured between each contact and ground. Pulse signals are measured using the CONSULT-II tester.
Caution: Do not use the ECM ground terminals when measuring the input/output voltage. This may damage the ECM transistor. Use a ground other than the ECM terminals, such as chassis ground.
[See the original on the resource: NissanBook]
★: Average voltage for pulse signal (the actual pulse signal can be checked on an oscilloscope).