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OBD II Fault Code P1734 :

Description of Fault code P1734

SHIFT MALFUNCTION F

Possible failuer P1734

  • Shift sol B or C stuck OFF
  • Shift valve B or C stuck

Diagnostic Procedure using AutoHex II Scan Tool

  • The PCM/ TCM monitors the actual mainshaft speed (rpm) and countershaft speed (rpm) ratios and the commanded ratio. The PCM/TCM computes these ratio continuously.
  • A malfunction is detected when a difference between the actual ratio and the commanded ratio occurs, and it is over the specific ratio.
  • When the 3rd -> 4th upshift has been made then the PCM/TCM detects neutral position while driving in 5th gear a malfunction is detected.

Test Conditions using AutoHex tester

  • D or D3 shift position
  • Battery Voltage > 11V
  • Upshifting 1st through 5th

Clear Fault codes Conditions

  • The PCM/ TCM monitors the actual mainshaft speed (rpm) and countershaft speed (rpm) ratios and the commanded ratio. The PCM/TCM computes these ratio continuously.
  • A malfunction is detected when a difference between the actual ratio and the commanded ratio occurs, and it is over the specific ratio.
  • When the 3rd -> 4th upshift has been made then the PCM/TCM detects neutral position while driving in 5th gear a malfunction is detected.

MIL Status

  • OFF

GDS KIA Ecu Flashing using AutoHex II


Note:

  • AutoHex II is a professional Auto diagnostic.
  • This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
    To get the accurate fault code description you may use AutoHex II

More Fault codes:

OBD II Fault Code P1735
OBD II Fault Code P1736
OBD II Fault Code P1737
OBD II Fault Code P1738
OBD II Fault Code P1739
OBD II Fault Code P173A
OBD II Fault Code P173B
OBD II Fault Code P173C
OBD II Fault Code P173D
OBD II Fault Code P173E
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