ECU CODE DESCRIPTION 11 Camshaft position sensor. 12 Mass airflow (MAF) sensor. 13 Engine coolant temperature (ECT) sensor.. 14 Vehicle speed (VSS) sensor. 21 No ignition referance. 23 Throttle Valve Switch 24 Transmission Switch 31 Engine control module (ECM).- A/C, light,fan and PS switch 32 EGR sensor.- starter switch 33 Oxygen sensor. 34 Knock (detonation) sensor (3.0 L). 35 EGR temp sensor. 41 Air temp sensor. 43 Throttle position sensor (TPS). 44 Normal Operation 45 Injector leak. 51 Injector circuit (3.0 L). 55 No malfunction recorded.
88-94 & 95 Pathfinder, Quest, Truck & 300ZX diagnostic codes:
ECU CONSULT CODE DESCRIPTION 11 P0340 Crank Angle Sensor/CMP Sensor 12 P0100 Air Flow Meter/MAF Sensor 13 P0115 ECT Sensor 14 P0500 VSS 21 P1320 Ignition Signal 22 P0505 Fuel Pump 23 P0605 Idle Switch (On/Off Diagnosis) 24 P0400 Throttle Valve Switch 25 P0150 ISC Valve 28 P1900 Cooling Fan Circuit (Overheat) 31 P0325 ECM 32 P1401 EGR Function 33 P0402 HO2S 34 & 37 P0130 Knock Sensor 35 P0150 Exhaust Gas Temperature Sensor 36 P0402 EGRC-BPT Valve 38 P0150 LH Bank Closed Loop (B2) 41 P0110 IAT Sensor 42 P0180 Fuel Temperature Sensor 43 P0120 TP Sensor 45 Injector Leak 47 P1335 CKP Sensor 51 Injector Circuit 53 P0130 O2S 54 P0600 A/T Control 55 P0000 No Malfunction 63 P0306 No. 6 Cylinder Misfire 64 P0305 No. 5 Cylinder Misfire 65 P0304 No. 4 Cylinder Misfire 66 P0303 No. 3 Cylinder Misfire 67 P0302 No. 2 Cylinder Misfire 68 P0301 No. 1 Cylinder Misfire 71 P0300 Random Misfire 72 P0420 TWC Function RH Bank 73 P0430 TWC Function LH Bank 76 P0170 Fuel Injection System Function RH Bank 77 P0136 Rear HO2S Circuit 82 P0335 CKP Sensor 84 P1605 A/T Diagnosis Communication Line 85 P1110 VTC Solenoid Valve Circuit 86 P0173 Fuel Injection System Function LH Bank 87 P0443 Canister Control Solenoid Valve Circuit 91 P0135 Front HO2S Heater Circuit RH Bank 94 P1550 TCC Solenoid Valve 95 P1336 CKP Sensor 98 P0125 ECT Sensor 101 P0155 Front HO2S Heater Circuit LH Bank 103 P0705 PNP Switch Circuit 105 P1400 EGR And EGR Canister Control Solenoid Valve Circuit 108 P0443 Canister Purge Control Valve Circuit P0600 Continuous Improper A/T Control Unit Voltage To ECM
Diesel diagnostic codes:
0-1 Normal 1-2 Pre-stroke Servo System 1-3 Rack Sensor System 1-5 Engine Speed Sensor System (Disconnected) 1-6 Engine Speed Sensor System (No Pulse) 2-1 ECT Sensor System 2-2 Pre-stroke Power Supply System 2-3 Pre-stroke Sensor System 2-4 Pre-stroke Learning Function Lamp Constantly Off - Lamp Bulb Blown Or Wiring Circuit Problem Lamp Constantly On - C.U. Power Supply System