Nissan 100NX N14 silhouetteN14

E.C.C. TROUBLE DIAGNOSES (Models with catalyzer) — Electrical Components Inspection (Cont'd): Crank Angle Sensor, Engine Temperature Sensor, Ignition Coil, Inhibitor Switch

EF & EC-143prose procedure

Component inspection procedures; engines GA13DS, GA14DS & GA16DS with catalyzer. Inhibitor switch implies A/T application.

Continued from EF & EC-142
GA13DS, GA14DS & GA16DS

Electrical Components Inspection (Cont'd)

Crank Angle Sensor

  1. 1
    Remove distributor from engine. (Crank angle sensor harness connector should remain connected.)
    Crank angle sensor test setup: distributor shown being rotated slowly by hand, with a label 'Rotates slowly by hand.' pointing to it and 'Crank angle sensor connector' pointing to the connector. A voltmeter is connected to the connector terminals (1-2-3-4 shown) and ground.
    SEF414K
  2. 2
    Disconnect ignition wires.
  3. 3
    Turn ignition switch "ON".
  4. 4
    Rotate distributor shaft slowly by hand and check voltage between terminals 3, 4 and ground.
    If N.G., replace distributor assembly with crank angle sensor.

Crank Angle Sensor — Voltage

1 (180° signal)
VoltageTester's pointer fluctuates between 5V and 0V.
2 (1° signal)
VoltageTester's pointer fluctuates between 5V and 0V.

Engine Temperature Sensor

  1. 1
    Disconnect engine temperature sensor harness connector.
    Engine temperature sensor test setup: the sensor with an ohmmeter connected across its harness connector terminals for resistance measurement.
    SEF536H
  2. 2
    Check resistance as shown in the figure.
    If N.G., replace engine temperature sensor.

Engine Temperature Sensor — Resistance

20 (68)
Resistance kΩ2.1 - 2.9
50 (122)
Resistance kΩ0.68 - 1.00
80 (176)
Resistance kΩ0.30 - 0.33

Ignition Coil

  1. 1
    Disconnect ignition coil harness connector.
    Ignition coil test setup: ignition coil (labelled 'Ignition coil') with an ohmmeter connected across terminals 1-2 for resistance measurement.
    SEF732I
  2. 2
    Check resistance as shown in the figure.
    If N.G., replace ignition coil.

Ignition Coil — Resistance

1 - 2
ResistanceApproximately 0.9Ω
1 - 3
ResistanceApproximately 9.5 kΩ

INHIBITOR SWITCH

Check continuity between terminals (a) and (b).

Inhibitor Switch — Continuity

Shift to "P" position
ContinuityYes
Shift to "N" position
ContinuityYes
Shift to position other than "P" and "N"
ContinuityNo
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