In this post,car-auto-repair.com show you this real repair case on how to repair VW Lavida,Tiguan,Passat steering warning light on & P305300 steering column lock trouble.More vw repair,please check here:Volkswagen Repair Cases
Preparation:
Newest ODIS-E Engineering 17.0.1/12.2.0/9.0.1 Free Download
08.2023 VW ODIS 23.0.5 & 7.2.1 & 5.2.7 Diagnostic Software Free Download
Trouble Symptom:
1.Car can start
2.Steering warning light on after car starting
Reasons:
Steering column lock module usually damaged when battery replacement.
Trouble Diagnosis:
Use VW ODIS software to diagnose,it get the error code P305300:P305300 starter activation return message terminal 50 short to ground/open circuit.
Use multimeter to measure the terminal 3,a bipolar junction transistor THQ33.And reoaur mechanic found THQ33 short circuit.
After TH133 bipolar junction transistor replacement,mechanic found the inner power supply was wrong.Finally,a 8 pins IC chip L4949ED damaged was found,it is low voltage power supply chip.
Sum up experience of this repair case:
The IC chip and THQ33 was damaged by low voltage when starting car.
L4949ED’s function is 5.0V/100mA low voltage regulation with adjustable reset time function.
This instruction show you guide on how to solve PCC2300 Powercommand HMI screen does not…
This instruction show you guide on how to solve AGCO machine SPN100 FMI 10 oil…
Here is the instruction show you guide on how to solve Valtra BH Series 140-210…
This instruction show you guide on how to use CAT ET 2025A to perform transmission…
Here is the instruction show you guide on how to solve JCB machine SPN 103,FMI…
This instruction show you guide on how to solve Deutz EMR3 Engine speed overrun 80…