P1CBE FIAT - Hydraulic Pump Stuck On

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Faulty Smart Driver Unit (SDU)
  • Faulty Hydraulic Pump
  • Hydraulic Pump harness is open or shorted
  • Hydraulic Pump circuit poor electrical connection
  • Faulty Transmission Control Module (TCM)

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1cbe Fiat Description

This diagnostic checks the performance of the hydraulic pump. The Smart Driver Unit (SDU) which is external to the Transmission Control Module (TCM) drives the hydraulic pump based upon a PWM command signal received from the Transmission Control Module (TCM). This diagnostic uses three feedback signals. The PWM driver, internal to TCM, returns a command feedback signal. The SDU returns to the TCM the hydraulic pump driver feedback signal. The TCM separately receives the hydraulic pump feedback signal confirming the pump state.
OBDII Code P1cbe Fiat - Hydraulic Pump Stuck On - AutoCodes.com

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P1CBE FIAT Comments

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