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 MANUALSDODGE AND RAM1999DAKOTA SLT, 2D PICKUP, 3.9 X, 4WD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTING - GASOLINERELAYS
1999 Dodge and Ram Dakota SLT, 2D Pickup, 3.9 X, 4WD, Standard
Engine Controls - System & Component Testing - Gasoline: Relays
1999 Dodge and Ram Dakota SLT, 2D Pickup, 3.9 X, 4WD, StandardSECTION Relays
- A/C Clutch Relay
See appropriate DTC P0645: A/C CLUTCH RELAY CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Auto Shutdown (ASD) Rela
See appropriate DTC P1388: AUTO SHUTDOWN RELAY CONTROL CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Fuel Pump Relay
See appropriate DTC P1282: FUEL PUMP RELAY CONTROL CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Radiator Fan Control Relay
See appropriate DTC P1491: RADIATOR FAN CONTROL RELAY CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Torque Converter Clutch (TCC) Relay
See appropriate DTC P0743: TORQUE CONVERTER CLUTCH SOLENOID/TRANSMISSION RELAY CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Transmission Governor Pressure Solenoid Relay
See appropriate DTC P0748: GOVERNOR PRESSURE SOLENOID/TRANSMISSION RELAY CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Transmission 12-Volt Supply Relay
See appropriate DTC P1765: TRANSMISSION 12-VOLT SUPPLY RELAY CONTROL CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
- Vehicle Speed Control Relay
See appropriate DTC P1683: SPEED CONTROL POWER RELAY CIRCUIT test in SELF-DIAGNOSTICS - JEEP, TRUCKS & RWD VANS article.
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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.