Nissan Versa

 Sedan Service Manual

Engine » Engine control system (EC) » Ecm
Reference Value

VALUES ON THE DIAGNOSIS TOOL

NOTE:

• The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.
• Numerical values in the following table are reference values.
• These values are input/output values that ECM receives/transmits and may differ from actual operations.

  Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the data monitor.

  This occurs because the timing light shows a value calculated by ECM according to signals received from the camshaft position sensor and other sensors related to ignition timing.

• For outlines of following items.

*: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally.

Thus, they differ from ECM terminals voltage signal.

TERMINAL LAYOUT

PHYSICAL VALUES

NOTE:

• ECM is located in the engine room left side near battery.
• When disconnecting ECM harness connector (A), loosen (C) it with levers as far as they will go as shown in the figure. ECM (1) Fasten (B)
• Connect a breakout box and harness adapter between the ECM and ECM harness connector.

  Use extreme care not to touch 2 pins at one time.

  Data is for comparison and may not be exact.

• Specification data are reference values and are measured between each terminals.
• Pulse signal is measured by CONSULT.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.) *1: Not used *2: Before measuring the terminal voltage, confirm that the battery is fully charged.

Reference Value

Fail Safe