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.
2002 Chevrolet Prizm Base, StandardFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Definitions
NOTE:
DTCs are retrieved using a Tech 2 scan tool, or other OBD-II compatible scan tool connected to OBD-II 16-pin Data Link Connector (DLC).
DIAGNOSTIC TROUBLE CODE DEFINITIONS
| DTC | Description | (1) Type | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| BXXX | Body Control Systems Malfunction | (2) | ||||||||
| CXXXX | Chassis Control System Malfunction | (2) | ||||||||
| P0100 | MAF Sensor Circuit | A | ||||||||
| P0101 | MAF Sensor Performance | B | ||||||||
| P0110 | IAT Sensor Circuit | A | ||||||||
| P0115 | ECT Sensor Circuit | A | ||||||||
| P0116 | ECT Sensor Circuit Performance | B | ||||||||
| P0120 | TP Sensor Circuit | A | ||||||||
| P0121 | TP Sensor System Performance | B | ||||||||
| P0125 | ECT Excessive Time To Enter Closed Loop | A | ||||||||
| P0128 | ECT Less Than Thermostat Regulating Temperature | A | ||||||||
| P0130 | HO2S Circuit - Sensor 1 | B | ||||||||
| P0133 | HO2S Slow Response - Bank 1, Sensor 1 | B | ||||||||
| P0135 Or P0141 | HO2S Heater Performance | B | ||||||||
| P0136 | HO2S Circuit - Sensor 2 | B | ||||||||
| P0171 | Fuel Trim System - Lean | B | ||||||||
| P0172 | Fuel Trim System - Rich | B | ||||||||
| P0300 | Engine Misfire Detected | B | ||||||||
| P0301-P0304 | Cylinder Misfire Detected | B | ||||||||
| P0325 | Knock Sensor Circuit | A | ||||||||
| P0335 | Crankshaft Position Sensor Circuit | B | ||||||||
| P0340 | Camshaft Position Sensor Circuit | A | ||||||||
| P0420 | Catalyst System Low Efficiency | B | ||||||||
| P0440 | Evaporative Emission System | B | ||||||||
| P0441 | Evaporative Emission System No Flow During Purge | B | ||||||||
| P0442 | Evaporative System Leak Detected | B | ||||||||
| P0446 | Evaporative System Vent Performance | B | ||||||||
| P0450 | Fuel Tank Pressure Sensor Circuit | B | ||||||||
| P0451 | Fuel Tank Pressure Sensor Performance | B | ||||||||
| P0500 (3) | Vehicle Speed Sensor Circuit | B | ||||||||
| P0505 | Idle Control System | A | ||||||||
| P0601-P0607, P1600, P1621, P1627, P1680, P1681 Or P1683 | PCM Memory | A | ||||||||
| P0750 (3) | Gear Required By PCM Does Not Match Actual Gear - Solenoid No. 1 | A | ||||||||
| P0753 (3) | Shift Solenoids No. 1 & 2 Circuit | A | ||||||||
| P0755 (3) | Gear Required By PCM Does Not Match Actual Gear - Solenoid No. 2 | A | ||||||||
| P0758 (3) | No Voltage Drop Across Shift Solenoid No. 2 Control | A | ||||||||
| P0770 (3) | TCC Lock-Up Status | A | ||||||||
| P0773 (3) | TCC Solenoid Circuit | A | ||||||||
| P1300, P1305, P1310 Or P1315 | Ignition Coil Primary Feedback Circuit | A | ||||||||
| P1335 | Crankshaft Position Sensor Circuit | A | ||||||||
| P1346 | Intake Camshaft Position System Performance | B | ||||||||
| P1349 | Intake Camshaft Position System | B | ||||||||
| P1520 (4) | Stoplight Switch Circuit | B | ||||||||
| P1656 | Intake Camshaft Position Actuator Solenoid Control | A | ||||||||
| P1780 (3) | PNP Switch Circuit | B | ||||||||
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Factory Service Tools
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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.