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.
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HOMESERVICE MANUALSPONTIAC19876000 SE, 4D WAGON, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEM2.0L VIN [K] / 2.5L VINS [R & U] TESTS W/CODES
1987 Pontiac 6000 SE, 4D Wagon, Standard
2.0L VIN [K] / 2.5L VINS [R & U] Tests W/Codes
1987 Pontiac 6000 SE, 4D Wagon, StandardSECTION 2.0L VIN [K] / 2.5L VINS [R & U] Tests W/Codes
- Model Identification
- Description
- Diagnostic System
- Basic Diagnostic Procedure
- Entering Or Exiting Diagnostic Mode (Non-Scan)
- Reading Trouble Codes
- ECM Trouble Code Definitions
- Trouble Code Determination (Hard Or Intermittent)
- Clearing Trouble Codes
- Diagnostic Materials
- Field Service Mode Check (Fuel Injected Models)
- Special Diagnostic Tools
- Scan Tester Usage
- Scan Tester - Test Data Parameters
- Chart Information For 1987 2.0L VIN K & 2.5L
- "Scan" Diagnostic Circuit Check (A/J/N/P Body)
- Diagnostic Charts
- Chart A1: No "Service Engine Soon" Light (A/J/N/P Body)
- Chart A2 - No Code 12, "SES" Light On Steady (A/J/N/P Body)
- Chart A3 - Engine Cranks But Won't Run (1 Of 2) (J Body)
- Chart A3 - Engine Cranks But Won't Run (2 Of 2) (J Body)
- Chart A3 - Cranks But Won't Run (1 Of 3) (A/N/P Body)
- Chart A3 - Engine Cranks But Won't Run (2 Of 3) (A/N/P Body)
- Chart A3 - Engine Cranks But Won't Run (3 Of 3) (A/N/P Body)
- Chart A5 - Fuel Pump Relay (A/J/N/P Body)
- Chart A7 - Fuel System Diagnosis (1 Of 2) (A/J/N/P Body)
- Chart A7 - Fuel System Diagnosis (2 Of 2) (A/J/N/P Body)
- Code 13 - Open Oxygen (O2) Sensor CKT (A/J/N/P Body)
- Code 14 - Coolant Temperature Sensor (Cts) Signal Voltage Low (A/J/N/P Body)
- Code 15 - Coolant Temperature Sensor (Cts) Signal Voltage High (A/J/N/P Body)
- Code 21 - TPS Signal Voltage High (A/J/N/P Body)
- Code 22 - TPS Signal Voltage Low (A/J/N/P/ Body)
- Code 23 - Mat Sensor Temp Low (A/J/N/P Body)
- Code 24 - Vehicle Speed Sensor (VSS) (N Body)
- Code 24 - Vehicle Speed Sensor (VSS) (A/J Body)
- Code 24 - Vehicle Speed Sensor (VSS) (P Body)
- Code 25 - Mat Sensor Temperature High (A/J/N/P Body)
- Code 33 - Map Sensor Signal Voltage High (A/J/N/P Body)
- Code 34 - Map Sensor Signal Voltage Low (A/J/N/P Body)
- Code 35 - Idle Speed Error (A/J/N/P Body)
- Code 42 - Electronic Spark Timing (Est) (J Body)
- Code 42 - Electronic Spark Timing (Est) (A/N/P Body)
- Code 44 - Lean Exhaust Indication (A/J/N/P Body)
- Code 45 - Rich Exhaust Indication (A/J/N/P Body)
- Code 51 - Faulty Prom (A/J/N/P Body)
- Code 53 - System OVERVOLTAGE (A/J/N/P Body)
- Chart C1 - ECM Replacement Check Chart
- Chart C1A - Park/Neutral Switch A/T (A/J/N/P Body)
- Chart C1D - Map Output Check (A/J/N/P Body)
- Chart C1E - P/S Pressure Switch (A/J/N/P Body)
- Chart C4C - Ignition System Check (J Body)
- Chart C4D1 - "Dis" Misfire At Idle (A/N/P Body)
- Chart C4D2 - "Dis" Misfire Under Load (A/N/P Body)
- Chart C7A - EGR Valve Check (A/J/N/P Body)
- Chart C8 - 125C TCC (A/J/N/P Body)
- Chart C8B - M/T Shift Light (A/J/N/P Bodies)
- Chart C10 - A/C Clutch Control (2.0L Engine)
- Chart C10 - A/C Clutch Control (2.5L Engines)
- Chart C12 - Engine Cooling Fan (N Body)
- Chart C12 - Engine Cooling Fan (A/J/P Body)
- Component Locations
- ECM Terminal Id
- Wiring Diagrams
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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.