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.
2001 Chevrolet MetroFACTORY 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 | ||
|---|---|---|---|---|
| P0106 | MAP Sensor System Performance | B | ||
| P0107 | MAP Sensor Circuit - Voltage Low | A | ||
| P0108 | MAP Sensor Circuit - Voltage High | A | ||
| P0111 | IAT Sensor System Performance | B | ||
| P0112 | IAT Sensor Circuit - Voltage Low | A | ||
| P0113 | IAT Sensor Circuit - Voltage High | A | ||
| P0116 | ECT Sensor Performance | B | ||
| P0117 | ECT Sensor Circuit - Voltage Low | A | ||
| P0118 | ECT Sensor Circuit - Voltage High | A | ||
| P0121 | TP Sensor System Performance | B | ||
| P0122 | TP Sensor Circuit - Voltage Low | A | ||
| P0123 | TP Sensor Circuit - Voltage High | A | ||
| P0125 | ECT Excessive Time To Enter Closed Loop | B | ||
| P0131 | HO2S Circuit Voltage Low - Sensor 1 | B | ||
| P0132 | HO2S Circuit Voltage High - Sensor 1 | B | ||
| P0133 | HO2S Slow Response - Sensor 1 | B | ||
| P0134 | HO2S Circuit Insufficient Activity - Sensor 1 | B | ||
| P0135 | HO2S Sensor Performance - Sensor 1 | B | ||
| P0136 | HO2S Circuit - Sensor 2 | B | ||
| P0141 | HO2S Heater Performance - Sensor 2 | B | ||
| P0171 | Fuel Trim System Lean | B | ||
| P0172 | Fuel Trim System Rich | B | ||
| P0300 | Engine Misfire Detected | B | ||
| P0301 | Cylinder No. 1 Misfire Detected | B | ||
| P0302 | Cylinder No. 2 Misfire Detected | B | ||
| P0303 | Cylinder No. 3 Misfire Detected | B | ||
| P0304 | Cylinder No. 4 Misfire Detected | B | ||
| P0335 | CKP Sensor Circuit | A | ||
| P0340 | CMP Sensor Circuit | A | ||
| P0420 | Catalyst System Low Efficiency | B | ||
| P0440 | EVAP System | B | ||
| P0450 | Fuel Tank Pressure Sensor Circuit | B | ||
| P0451 | Fuel Tank Pressure Sensor Performance | B | ||
| P0455 | EVAP System Leak Detected | A | ||
| P0461 | Fuel Level Sensor Performance | B | ||
| P0463 | Fuel Level Sensor Circuit Voltage High | B | ||
| P0480 | Cooling Fan Control Circuit | B | ||
| P0500 | Vehicle Speed Sensor Circuit (A/T) | B | ||
| P0500 | Vehicle Speed Sensor Circuit (M/T) | B | ||
| P0505 | Idle Control System | B | ||
| P0506 | Idle Speed Low | B | ||
| P0507 | Idle Speed High | B | ||
| P0601 | Control Module Read Only Memory (ROM) | B | ||
| P0603 | Control Module Long Term Memory Reset | B | ||
| P1410 | Fuel Tank Pressure Control Solenoid Circuit | B | ||
| P1451 | BARO Sensor Performance | B | ||
| P1500 | Starter Signal Circuit | B | ||
| P1510 | Control Module Long Term Memory Reset | A | ||
| P1530 | Ignition Timing Adjustment Switch Circuit | A | ||
|
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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.