Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Controls - Tests W/o Codes: Other Nissan Quest I

Cold

6, 1, 26 (Pickup 2.4L), 5, 2, 4, 7, 17, 19, 18.

Normal Conditions

6, 1, 2, 4, 7, 10, 17, 19, 18, 20 (V6 except Maxima w/ DIS).

Hot

1, 15, 2, 4, 17, 19, 18.

Warm

5, 8, 9, 21.

After Warm-Up

10, 25, 2, 4, 7, 1, 28, 8, 3, 12, 17, 18.

Hunting

13, 25, 7, 8, 10.

7, 8, 22, 23.

Under Normal Conditions

7, 28, 14, 8.

15, 14, 8 (NX and Sentra).

Lack Of Power/Stumble

1, 8, 20 (V6 except Maxima with DIS).

Surge

28, 10, 18.

Detonation

8, 10, 11, 7.

26 (Pickup 2.4L), 5, 25, 2, 4, 7, 1, 17, 19, 18.

15, 25, 2, 4, 1, 17, 19, 18, 20 (V6 except Maxima with DIS).

On Momentary Acceleration

27, 25, 2, 4, 1, 17, 19, 18.

After Deceleration

27, 3, 25, 2, 4, 1, 28, 17, 19, 18.

Acceleration Or Cruising

25, 2, 4, 1, 8, 17, 19, 18.

Heavy Electrical Load

6, 25, 2, 4, 1, 17, 19, 18.

While Turning

16, 25, 2, 4, 1, 17, 19, 18.

Intake

7, 8, 23.

Exhaust

24.

Intermittent Simulation

To reproduce conditions creating an intermittent fault, use following methods

  1. Lightly vibrate component.
  2. Heat component.
  3. Wiggle or bend wiring harness.
  4. Spray component with water.
  5. Remove/apply vacuum source.

Monitor circuit/component voltage or resistance while simulating intermittent. If engine is running, monitor for self-diagnostic codes. Use test results to identify a faulty component or circuit.

Mode V

Mode V detects problems when system is active. Red and Green LEDs on side of ECM will display malfunction code as soon as a malfunction is detected.

  1. While operating vehicle in self-diagnostic Mode V, observe inspection lights. Operate vehicle under conditions in which malfunction or intermittent seems to occur.
  2. If malfunction code is indicated, repair related circuit for intermittent problem. If no intermittent fault is indicated, go to INTERMITTENT SIMULATION.

To reproduce conditions creating an intermittent fault, use following methods

  1. Lightly vibrate component.
  2. Heat component.
  3. Wiggle or bend wiring harness.
  4. Spray component with water.
  5. Remove/apply vacuum source.

Monitor circuit/component voltage or resistance while simulating intermittent. If engine is running, monitor for self-diagnostic codes. Use test results to identify a faulty component or circuit.