2001 INFINITI I30 User Manual

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DTC Inspection Priority Chart

NHEC0039

If some DTCs are displayed at the same time, perform inspections one by one based on the following prior-

ity chart.

Priority Detected items (DTC)

1 I P0100 Mass air flow sensor

I P0110 Intake air temperature sensor

I P0115 P0125 Engine coolant temperature sensor

I P0120 Throttle position sensor

I P0180 Fuel tank temperature sensor

I P0325 Knock sensor

I P0335 P1336 Crankshaft position sensor (POS)

I P0340 Camshaft position sensor (PHASE)

I P0460 P0461 P0464 P1464 Fuel level sensor

I P0500 Vehicle speed sensor

I P0605 ECM

I P1126 Thermostat function

I P1320 Ignition signal

I P1335 Crankshaft position sensor (REF)

I P1605 A/T diagnosis communication line

I P1706 Park/Neutral position (PNP) switch

2 I P0105 Absolute pressure sensor

I P0130-P0134, P0150-P0154 Heated oxygen sensor 1 (front)

I P0135 P0155 Heated oxygen sensor 1 heater (front)

I P0137-P0140, P0157-P0160 Heated oxygen sensor 2 (rear)

I P0141 P0161 Heated oxygen sensor 2 heater (rear)

I P0217 Coolant overtemperature enrichment protection

I P0443 P1444 EVAP canister purge volume control solenoid valve

I P0446 P1446 P1448 EVAP canister vent control valve

I P0450 EVAP control system pressure sensor

I P0510 Closed throttle position switch

I P0705-P0755 P1705 P1760 A/T related sensors, solenoid valves and switches

I P1165 Swirl control valve control vacuum check switch

I P1447 EVAP control system purge flow monitoring

I P1490 P1491 Vacuum cut valve bypass valve

3 I P0171 P0172 P0174 P0175 Fuel injection system function

I P0306 - P0300 Misfire

I P0420 P0430 Three way catalyst function

I P0440 P1440 EVAP control system (SMALL LEAK)

I P0455 EVAP control system (GROSS LEAK)

I P0505 IACV-AAC valve

I P0600 A/T communication line

I P0731-P0734 P0744 A/T function

I P1130 Swirl control valve control solenoid valve

I P1148 P1168 Closed loop control

IDX

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

DTC Inspection Priority Chart

EC-121

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User Manual - Page 121