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 MANUALSJEEP2008COMPASS LIMITED, FWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMDTC U1418, CHECKING FOR INTERMITTENT CONDITION, SYSTEM CHECKS, COMPONENT CHECKS*NO RESPONSE WITH A NO START CONDITIONPOSSIBLE CAUSES
2008 Jeep Compass Limited, FWD, Standard
Possible Causes
2008 Jeep Compass Limited, FWD, StandardSECTION Possible Causes
| Possible Causes |
|---|
| (A931) FUSED B+ CIRCUIT (PCM) |
| (F202) FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUITS (PCM) |
| (Z925) PCM GROUND CIRCUITS (PCM) |
| (K51) MAIN RELAY CONTROL CIRCUIT |
| (A14) FUSED B+ CIRCUIT (MAIN RELAY) |
| (A935) FUSED B+ CIRCUIT (MAIN RELAY) |
| (K542) MAIN RELAY OUTPUT CIRCUIT (TO TIPM) |
| (F342/F343/344) MAIN RELAY OUTPUT CIRCUIT (TO PCM) |
| TIPM |
| PCM |
RENDER: 1.0x
NO RELATED
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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.