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.
1996 Ford Probe GT, AutomaticFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code (DTC) Reference Chart: Notes
DIAGNOSTIC TROUBLE CODE (DTC) REFERENCE CHART
| DTC | Drive Pattern | Fault Description | Go To Test: | ||||
|---|---|---|---|---|---|---|---|
| P0100 | - | Measuring core-volume air flow (MC-VAF) or mass air flow (MAF) sensor circuit malfunction | DC | ||||
| P0110 | - | Intake air temperature (IAT) circuit malfunction | DA | ||||
| P0115 | - | Engine coolant temperature (ECT) sensor circuit malfunction | DA | ||||
| P0120 | - | Throttle position (TP) sensor circuit malfunction | DH | ||||
| P0125 | C | Insufficient coolant temperature for closed loop control | DA | ||||
| P0130 | A | Heated oxygen sensor (HO2S11) circuit malfunction (Bank 1 Sensor 1) (1.3L uses O2S) | H | ||||
| P0134 | C | Heated oxygen sensor (HO2S11) circuit no activity detected (Bank 1 Sensor 1) (1.3L uses O2S) | H | ||||
| P0135 | C | HO2S heater circuit malfunction (Bank 1 Sensor 1) | H | ||||
| P0140 | C | Heated oxygen sensor (HO2S12) circuit no activity detected | H | ||||
| P0141 | C | Heated oxygen sensor (HO2S12) circuit no activity detected | H | ||||
| P0150 | A | HO2S circuit malfunction (Bank 2 Sensor 1) | H | ||||
| P0154 | C | HO2S circuit no activity detected (Bank 2 Sensor 1) | H | ||||
| P0155 | C | HO2S heater circuit malfunction (Bank 2 Sensor 1) | H | ||||
| P0160 | C | HO2S circuit malfunction (Bank 2 Sensor 2) | H | ||||
| P0170 | B | Fuel trim malfunction (Bank 1) | H | ||||
| P0173 | B | Fuel trim malfunction (Bank 2) | H | ||||
| P0300 (1) | B | Random/multiple cylinder misfire detected | HD | ||||
| P0301 (1) | B | Cylinder #1 misfire detected | HD | ||||
| P0302 (1) | B | Cylinder #2 misfire detected | HD | ||||
| P0303 (1) | B | Cylinder #3 misfire detected | HD | ||||
| P0304 (1) | B | Cylinder #4 misfire detected | HD | ||||
| P0305 (1) | B | Cylinder #5 misfire detected | HD | ||||
| P0306 (1) | B | Cylinder #6 misfire detected | HD | ||||
| P0335 | - | Crankshaft position (CKP) sensor circuit malfunction | JA | ||||
| P0340 | - | Camshaft position (CMP) sensor circuit malfunction | DR | ||||
| P0420 | A | Catalyst system efficiency below threshold (Bank #1) | HF | ||||
| P0430 | A | Catalyst system efficiency below threshold (Bank #2) | HF | ||||
| P0440 | A | Evaporative emission control system malfunction | HV | ||||
| P0443 | B | Evaporative emission control system purge control valve circuit malfunction | HV | ||||
| P0500 | - | Vehicle speed sensor (VSS) malfunction | DP | ||||
| P0505 | - | Idle control system malfunction | KE | ||||
| P0510 | - | Closed throttle position switch malfunction (idle switch) | DH | ||||
| P0703 | - | Brake on/off (BOO) switch | FD | ||||
| P0705 | - | Transmission range (TR) sensor circuit malfunction | TD | ||||
| P0710 | - | Transmission fluid temperature (TFT) sensor circuit malfunction | TE | ||||
| P0715 | - | Turbine speed sensor (TSS) circuit malfunction | TF | ||||
| P0731 | - | Incorrect gear 1 ratio | TC | ||||
| P0732 | - | Incorrect gear 2 ratio | TC | ||||
| P0733 | - | Incorrect gear 3 ratio | TC | ||||
| P0734 | - | Incorrect gear 4 ratio | TC | ||||
| P0740 | - | Torque converter clutch (TCC) circuit malfunction | TC | ||||
| P0745 | - | Pressure control solenoid malfunction | TC | ||||
| P0750 | - | Shift solenoid #1 (SS1) malfunction | TC | ||||
| P0755 | - | Shift solenoid #2 (SS2) malfunction | TC | ||||
| P0760 | - | Shift solenoid #3 (SS3) malfunction | TC | ||||
| P1000 | (2) | OBD II readiness function code | QC | ||||
| P1170 | C | RHO2S voltage fixed | H | ||||
| P1173 | - | HO2S (front LH) inversion | H | ||||
| P1173 | C | RHO2S voltage fixed | H | ||||
| P1196 | - | Starter switch circuit malfunction | JA | ||||
| P1250 | - | Fuel pressure regulator control (FPRC) solenoid malfunction | H | ||||
| P1345 | - | Cylinder discrimination signal (from CMP Sensor) | DR | ||||
| P1521 | - | Variable resonance induction system (VRIS) solenoid #1 malfunction | HU | ||||
| P1522 | - | VRIS solenoid #2 | HU | ||||
| P1523 | - | High speed inlet air (HSIA) solenoid malfunction | HU | ||||
| P1609 | - | PCM internal circuit malfunction | Replace PCM | ||||
| P1709 | - | Throttle position (TP) sensor malfunction | DH | ||||
| P1720 | - | Vehicle speed sensor (VSS) circuit malfunction | DP | ||||
| P1743 | - | Torque converter clutch control (TCCC) solenoid malfunction | TC | ||||
| P1744 | - | Torque converter clutch (TCC) solenoid malfunction | TC | ||||
| P1765 | - | 3-2 timing solenoid malfunction | TC | ||||
| P1792 | - | Idle (IDL) switch (closed throttle position switch) malfunction | DH | ||||
| P1794 | - | Loss of battery voltage input | B | ||||
| P1797 | - | Clutch pedal position (CPP) switch or neutral switch circuit malfunction | TA | ||||
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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.
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