Nissan 100NX N14 silhouetteN14

Electrical Components Inspection (Cont'd)

EF & EC-635prose procedure

Injector resistance differs: SR20DE 10-14Ω vs SR20DET 1-3Ω. Injector connector illustration differs between SR20DE (SEF401L) and SR20DET (SEF294L).

Continued from EF & EC-634

TROUBLE DIAGNOSES

Electrical Components Inspection (Cont'd)

INJECTOR

  1. 1
    Disconnect injector harness connector.
    SR20DE injector illustration. Harness connector disconnected (DISCONNECT symbol); an ohmmeter (Ω) checks resistance between injector terminals.
    SEF401L
  2. 2
    Check resistance between terminals as shown in the figure.

Injector resistance

SR20DE
Resistance10 - 14Ω
SR20DET
Resistance1 - 3Ω
If N.G., replace injector.

RADIATOR FAN MOTORS-1 AND -2

  1. 1
    Disconnect radiator fan motor harness connectors.
    Radiator fan motor illustration. Shows radiator fan motor-1 and motor-2 harness connectors disconnected (DISCONNECT symbol); a battery (BAT) supplies voltage to the fan motor terminals to check operation. Labelled 'Radiator fan motor-1 harness connector' and 'Radiator fan motor-2 harness connector'.
    SEF479L
  2. 2
    Supply radiator fan motor terminals with battery voltage and check operation. Radiator fan motor should operate.
If N.G., replace radiator fan motor.

E.C.C.S. RELAY, RADIATOR FAN RELAY AND FUEL PUMP RELAY

Check continuity between terminals ③ and ⑤.

E.C.C.S. relay / radiator fan relay / fuel pump relay continuity

12V direct current supply between terminals ① and ②
ContinuityYes
No current supply
ContinuityNo
If N.G., replace neutral switch.

NEUTRAL SWITCH

Check continuity between terminals ⓐ and ⓑ.

Neutral switch continuity

Shift to Neutral
ContinuityYes
Shift to other position
ContinuityNo
If N.G., replace neutral switch.
Support our work!

Search Manual

Search pages, specs, and procedures