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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P1236: Fuel Pump Control Out Of Range

DTC P1236: Fuel Pump Control Out Of Range

P1236 - FUEL PUMP CONTROL OUT OF RANGE

Description:  This DTC indicates the fuel pump driver module 2 (FPDM2) detected an invalid or missing fuel pump (FP) circuit signal from the powertrain control module (PCM). The FPDM2 sends a message to the PCM through the fuel pump monitor (FPM2) circuit, indicating this concern is detected. The PCM sets the DTC when the message is received.
Possible Causes: 
  • FP circuit open or shorted
  • Damaged FPDM2
  • Damaged PCM
Diagnostic Aids:  The FPDM2 sends a 25% duty cycle (250 ms on, 750 ms off) through the FPM2 circuit to the PCM while the concern is being detected by the FPDM2. If the concern is no longer detected, the FPDM2 returns to sending an all OK (50% duty cycle) message to the PCM.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test KB .
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