Possible Causes

2008 Jeep Compass Sport, 2.4 W, FWD, StandardSECTION Possible Causes
Possible Causes 
INTERMITTENT DTC
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(K602) MFV SIGNAL CIRCUIT SHORTED TO VOLTAGE
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K602) MFV SIGNAL CIRCUIT SHORTED TO GROUND
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K602) MFV SIGNAL CIRCUIT
(K857) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
(K602) MFV SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT
(K857) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(K602) MFV SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
(K900) SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
MANIFOLD FLOW VALVE
POWERTRAIN CONTROL MODULE (PCM)

Perform PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .

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.