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Home >> Jeep >> 2004 >> Grand Cherokee Overland, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Powertrain Diagnostic Procedures >> DRIVEABILITY - Gas - Diagnostic Tests >> P1282-Fuel Pump/System Relay Control Circuit >> Possible Causes
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Possible Causes

  1. FUEL PUMP RELAY OPERATION
  2. FUEL PUMP RELAY
  3. (F991) FUSED IGNITION SWITCH OUTPUT CIRCUIT
  4. (K31) FUEL PUMP RELAY CONTROL CIRCUIT OPEN
  5. (K31) FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
  6. PCM
Fig 1: Diagnosis Procedure - P1282-Fuel Pump/System Relay Control Circuit (Test 1 To 2)
G00989759Courtesy of DAIMLERCHRYSLER CORP.
Fig 2: Diagnosis Procedure - P1282-Fuel Pump/System Relay Control Circuit (Test 3 To 6)
G00989760Courtesy of DAIMLERCHRYSLER CORP.
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