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DTC P0201 - P0204 INJECTOR CIRCUIT (CYL 1 - CYL 4) - Diagnostic Procedure (Cont'd) / Component Inspection

EF & EC-7169flowchart

Source prints 'CH3ECK INTERMITTENT INCIDENT' (likely OCR-style typo in original).

Continued from EF & EC-7168

Diagnostic Procedure (Cont'd)

DTC P0201-P0204 Injector Circuit Diagnostic Procedure (Cont'd)

1
3. CHECK OUTPUT SIGNAL CIRCUIT 1. Turn ignition switch "OFF". 2. Disconnect ECM harness connector. 3. Check harness continuity between injector harness connector terminal 1 and ECM terminals 3, 4, 31, 32. Refer to wiring diagram. Continuity should exist. 4. Also check harness for short to ground and short to power.
NG
4. DETECT MALFUNCTIONING PART
4. DETECT MALFUNCTIONING PART Check the harness for open or short between ECM and injector. Repair open circuit or short to ground or short to power in harness or connectors.
OK
2
5. CHECK INJECTOR Refer to "Component Inspection", below.
NG
3
Replace injector.

Component Inspection

INJECTOR

Injector Component Inspection

  1. 1
    Disconnect injector harness connector.
    Injector terminal resistance check with ohmmeter on disconnected injector connector
    SEF139X
  2. 2
    Check resistance between terminals as shown in the figure. Resistance: 13.5 - 17.5 ohm [at 25 deg C (77 deg F)] If NG, replace injector.
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See also

EC-7070

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