Saturday, May 29, 2010

Field Case Study,Hyundai Sonata(FL)=ATM 3rd GEAR Hold

Model: Sonata (FL) Year Model: 2009 mileage:40000km
Displacement: 2400 cc Fuel: Gasoline T/A: Auto
N code: Impossible to Shift C code: Poor Contact & Short,Open Circuit System: Fuse & Relay Information
Subject: ATM 3rd Gear Hold = ATM Control Relay

1) Trouble Condition:
  1. Automatic Transaxle 3rd gear Hold During Driving.
2) Trouble Cause:
  1. Inoperative ATM control relay due to poor wiring Ground.
3) Trouble Diagnosis:
  1. Scan tool check =Diagnostic Trouble Code.
  2.        DTC     Diagnostic Item
           P1723     ATM control relay open
    = Inspect the current data.
    = AT control Volt 0.00V.
  1. Inspect A/T control relay.
    = Calculate a resistance value of A/T relay coil:95 ohms = Normal
    = Check contact piont after removing A/T relay cover: Normal.
    = Inspect power source and ground condition using test lamp and multimeter.
    = # 1 terminal: 12Volt
    = # 4 terminal: the power is supplied for about 3.6 seconds the Cut oof when IG ket is turned “ON”
    = #2 Ground does not opperate
  2. Check the wire from the C48 connector tpo G14 ground point using multi meter: 0 ohms ( Normal)
  3. Inspect G 14 Ground point: Poor volt for tightening ground point.

    =Normal Condition After After Retightening the Bolt.

0 comments:

Post a Comment

Locations of visitors to this page