The 1995 Probe GT, known for its sporty handling and performance, utilizes the OBD2 (On-Board Diagnostics II) system for diagnosing engine and transmission problems. This system provides specific diagnostic trouble codes (DTCs) that pinpoint the source of the issue. Understanding these codes is crucial for effective troubleshooting and repair. This comprehensive list covers common OBD2 codes for the 95 Probe GT.
Common 95 Probe GT OBD2 Codes: Engine and Transmission
The following list details a wide range of OBD2 codes that can occur in a 1995 Probe GT. Each code is accompanied by a brief description of the potential problem:
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P1479: Fan Control (Condenser Primary) Circuit – Indicates a problem with the primary cooling fan circuit, often related to a faulty fan motor, relay, or wiring.
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P1485 – P1487: EGR (Exhaust Gas Recirculation) System Codes – These codes signify issues within the EGR system, including vacuum solenoid malfunctions, vent solenoid problems, or issues with the EGR valve itself.
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P1496 – P1499: EGR Valve Motor Coil Codes – Point to potential problems within the EGR valve motor coil, such as open or shorted circuits in the individual coils.
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P1500 – P1502: Vehicle Speed Sensor (VSS) Codes – These codes indicate problems with the vehicle speed sensor, which can affect various systems including the speedometer, cruise control, and transmission shifting.
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P1504 – P1507: Idle Air Control (IAC) System Codes – Problems with the IAC system, which regulates engine idle speed, are indicated by these codes. Issues can include a faulty IAC valve, solenoid, or wiring.
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P1508 – P1509: Bypass Air Solenoid Codes- These codes point to problems in the bypass air solenoid circuits, potentially affecting air intake and engine performance.
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P1512: Variable Tumble Control System (VTCS) Fault – Indicates a malfunction in the VTCS, which optimizes air intake for different engine speeds.
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P1521 – P1523: Variable Resonance Induction System (VRIS) and Variable Induction Control System (VICS) Solenoid Codes – These codes relate to problems with the solenoid circuits that control these intake systems, potentially affecting engine performance.
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P1524 – P1526: Charge Air Cooler Bypass and Air Bypass Valve (ABV) Solenoid Codes – Issues with the solenoids controlling these systems, often related to boost control or emissions, are indicated by these codes.
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P1529: Atmospheric Balance Air Control Valve Circuit – Points to a problem in the circuit controlling this valve, which helps regulate air intake.
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P1540: ABV System Fault – Indicates a general fault within the Air Bypass Valve system.
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P1562: Powertrain Control Module (PCM) Battery Voltage Low – This code signifies low voltage to the PCM, potentially caused by a weak battery or charging system issue.
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P1569 – P1570: VTCS Circuit Input Codes – These codes indicate problems with the input signal to the VTCS, potentially caused by faulty sensors or wiring.
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P1601 – P1602: PCM Communication Error – These codes point to communication problems between the PCM and the Transmission Control Module (TCM).
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P1603 – P1605: Immobilizer System Faults – Problems with the immobilizer system, which prevents unauthorized vehicle starting, are indicated by these codes.
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P1608 – P1609: PCM CPU and Knock Sensor Codes – These codes relate to internal PCM faults or issues with the knock sensor circuit, which detects engine detonation.
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P1621 – P1624: Immobilizer System Faults – Further codes indicating problems with the immobilizer system.
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P1627 – P1628: PCM/TCS Communication Error – These codes point to communication problems between the PCM and the Traction Control System (TCS).
Conclusion
This extensive list of OBD2 codes provides a valuable resource for diagnosing problems in your 1995 Probe GT. While this list covers many common issues, it is recommended to use an OBD2 scanner to retrieve the specific codes from your vehicle. Further diagnosis may be necessary to pinpoint the exact cause of the problem. Remember, addressing these issues promptly can help maintain the performance and reliability of your Probe GT.
