Fault code lookup

PowertrainP09EC

Caution

Severity: Caution - get it checked when you can

Internal fault of the right front power window electronic card

10 brands affected · Description from DFFS data.

Key terms: Powertrain: engine, transmission and emissions

1What it means in plain English

This range normally covers the transmission control system, but some manufacturers use P07-P09 codes for unrelated functions (fuel pump control, air-mix motors, lighting or windows). Check the description before assuming it is a transmission fault.

2Common causes

  1. Low or dirty transmission fluid
  2. Faulty shift solenoid
  3. Faulty speed sensor
  4. Wiring or connector fault
  5. Internal transmission wear

3Can I drive?

Caution · drive with care

If the transmission slips, jerks, will not shift, or a transmission temperature warning is on, stop driving and let it cool: continuing can cause expensive damage. If the code names a different system (for example the fuel pump), treat it on its own terms; a fuel-pump control failure can stall the car, so have it checked before driving further. Otherwise drive gently to a workshop.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 10

BrandCodeDescriptionSystem
DaewooP09ECNo description available Powertrain
DFFSP09ECInternal fault of the right front power window electronic card BrandPowertrain
FordP09ECNo description available Powertrain
GMP09ECNo description available Powertrain
HoldenP09ECNo description available Powertrain
Land RoverP09ECNo description available Powertrain
MazdaP09ECNo description available Powertrain
OpelP09ECNo description available Powertrain
PeugeotP09ECNo description available Powertrain
SaabP09ECNo description available Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Related codes

  • P09E0 Lost communication with left rear power window unit
  • P09E1 Lost communication with right rear power window unit
  • P09E2 Lost communication with left front power window unit
  • P09E3 Lost communication with right front power window unit
  • P09E4 Lost communication with memory lighting component unit
  • P09E5 Thermal protection failure of left rear electric window
  • P09E6 Right rear power window thermal protection failure
  • P09E7 Thermal protection failure of the left front power window
  • P09E8 Thermal protection failure of the right front power window
  • P09E9 Voltage failure at the upper or lower limit position of the right rear power window
  • P09EA Right rear power window electronic card internal fault
  • P09EB Internal failure of the left rear power window electronic card

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