Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Nissan-Datsun Sentra BaseFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes 1.6
- Introduction
- Description & Operation
- Self-Diagnostics Using Mil
- Self-Diagnostics Using Scan Tool
- Additional System Features
- Final Check
- Diagnostic Trouble Code Definitions
- Connector Identification
- Circuit Tests
- Please Read This First *
- DTC P0100 - Mass Airflow (MAF) Sensor
- DTC P0105 - Absolute Pressure (AP) Sensor (1.6L)
- DTC P0110 - Intake Air Temperature (IAT) Sensor
- DTC P0115 Or DTC P0125 - Engine Coolant Temperature (ECT)
- DTC P0120 - Throttle Position (TP) Sensor
- DTC P0125 - Engine Coolant Temperature (ECT) Sensor
- DTC P0130 - Front Heated Oxygen Sensor (Ho2S)
- DTC P0135 - Front Heated Oxygen Sensor (Ho2S) Heater
- DTC P0136 - Rear Heated Oxygen Sensor (Ho2S)
- DTC P0141 - Rear Heated Oxygen Sensor (Ho2S) Heater
- DTC P0170 - Fuel Injection System
- DTC P0171 - Fuel Injection System Function-Lean Side
- DTC P0172 - Fuel Injection System Function-Rich Side
- DTC P0180 - Tank Fuel Temperature (TFT) Sensor
- DTC P0300 Through DTC P0304 - Cylinder Or Multiple Cylinder Misfire
- DTC P0325 - Knock Sensor
- DTC P0335 Or DTC P1336 - Crankshaft Position (CKP) Sensor
- DTC P0340 - Camshaft Position (CMP) Sensor
- DTC P0400 - EGR Function
- DTC P0402 - EGR Control BACKPRESSURE Transducer (EGRC-BPT) Valve
- DTC P0420 - 3-Way Catalyst Function
- DTC P0440 - Evaporative Emission (EVAP) Control System
- DTC P0443 - Evaporative Emission (EVAP) Canister Purge Control Solenoid
- DTC P0446 - Evaporative Emission (EVAP) Canister Vent Control Valve
- DTC P0450 - Evaporative Emission (EVAP) Control System Pressure Sensor
- DTC P0500 - Vehicle Speed Sensor (VSS)
- DTC P0505 - Idle Air Control (IAC) Valve
- DTC P0605 - ECM-ECCS Control Module
- DTC P0705 - Park/Neutral Position Switch
- DTC P1105 - Manifold Absolute Pressure (Map)/Barometric Pressure (BARO) Solenoid
- DTC P1110 - Valve Timing Control (VTC)
- DTC P1320 - Ignition Signal
- DTC P1336 - Crankshaft Position (CKP) Sensor
- DTC P1400 - EGR Control (EGRC) Solenoid Valve
- DTC P1401 - EGR Temperature Sensor
- DTC P1441 - Vacuum Cut Bypass Valve
- DTC P1445 - EVAP Canister Purge Volume Control Valve
- DTC P1447 - EVAP System Purge Flow Monitoring
- DTC P1550 - Torque Converter Clutch Solenoid Valve
- DTC P1605 - Automatic Transmission (A/T) Control
- DTC P1900 - Cooling Fan Circuit
- Summary
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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