Any garages are close to Oxford and know well about Vellfire and can help me fix my problem??

[Jackie298]

Thanks!! 

[Steve in Chester]

Always worth checking the basics before paying a garage.

Have you had a flat battery recently? That can throw up spurious faults. 

Is the battery in good condition?
What’s the voltage across the battery with the engine running? The electronics need the correct voltage to operate correctly. 
Any blown fuses?

Have you done any jobs on the car that might have caused it?

[Chris.ac]

do you have km/h to mph converter box fitted?

 

Error codes on the 'U' range are usually canbus related communication issues, and not actual sensor data - so any electronics fitted after car was bought may be shorting something or introducing noise on to one of the signal paths

 

 

As Steve above said - check battery first, if it has not been changed on importing, it may be at the end of its serviceable life, you need a decent working voltage to ensure the electronics are functioning correctly

Edited August 21, 2022 by Chris.ac

[maq]

I installed a new battery recently, genuine Panasonic one....I'm getting similar alerts on dashboard, all pop up at same time. I can get rid of them by disconnecting  battery for 2 mins. But they re-appear after a couple of days, and then electric motor doesn't kick in...only petrol engine works.

 

Any thoughts plz?

[vanjosh]

I recently took my Vellfire to service and Mot at SJM motors in Headington, I was happy with the whole experience there, they are very honest and knowledgable, I am not sure they are well known about these Vellfire and Alphard, maybe worth asking them for some advice, hopefully this helps. 

[Rojie]

I replaced my battery earlier this year.

 

Old one was OK, but only OK.

 

My model uses the Calcium Lead version, which has  a slightly higher output voltage.

 

Still need to keep it well charged though.

 

As others have said, always suspect the battery first.

When you know that is in tip top condition you stand a much better chance of finding the real problem.

[Chris.ac]

would be great if the original posters with the issue could reveal what the problem was.

 

I still think it was related to some device fitted, either that or there is some part of the wheel speed sensors not sending the correct data to the ECU, a dodgy converter for the km/H to mph could do this, maybe some poor installation done with those cheap wire splice connectors rather than soldered joints.

 

All the errors point towards something like this.

 

Function (Function Description)	Control Master	System Related	Fail-safe Operation	DTC (Driver Detectable)
ABS control (Controls driving force while ABS in operation)	Skid control ECU	ECM Yaw rate and acceleration sensor	ABS control is inoperative (ABS control gradually stops)	U0073 U0100 U0124 (Warning and indicator lights come on)
TRC control (Engine power control by VSC/TRC)	Skid control ECU	ECM Yaw rate and acceleration sensor Steering angle sensor	ABS/VSC control is inoperative (ABS/VSC control gradually stops)	U0073 U0100 U0123 U0124 U0126 (Warning and indicator lights come on)
VSC control (Controls driving force while VSC in operation)	Skid control ECU	ECM Yaw rate and acceleration sensor Steering angle sensor	ABS/VSC control is inoperative (ABS/VSC control gradually stops)	U0073 U0100 U0123 U0124 U0126 (Warning and indicator lights come on)
Cooperative control (VSC with EPS-VSC integrated control)	Skid control ECU	Power steering ECU Steering angle sensor	Vehicle speed sensitive control is inoperative (Control is performed with assist force equivalent to that of driving at 70 km/h (43 mph))	U0073 (Warning light comes on)
Electric power steering control (Speed of vehicle induction type torque control)	Power steering ECU	ECM Skid control ECU	Depression of EPS assist (Deterioration of steering assist)	U0100 U0129 (Warning light comes on)
Headlight swivel/Leveling control (Headlight control)	AFS ECU	ECM Skid control ECU Steering angle sensor Main body ECU	Swivel control stops (Leveling control remains on)	B2427 (Indicator light blinks)
Air conditioning control (Air conditioning control is cabin)	Air conditioning amplifier	ECM Combination meter Main body ECU Power steering ECU	Air conditioning function and PTC heater function stop	(99) U0100 U0131 U0142 U0155 (Air conditioning is inoperative)
Clearance sonar control (Inform that an obstacle is detected)	Clearance warning ECU	ECM Combination Meter Main Body ECU	Clearance sonar control does not operate	U0101 U0142 U0155 (Clearance sonar is inoperative)
Entry function/Power door lock control	Certification ECU (Smart key ECU assembly)	Main Body ECU	Unlock permitted	U0327 U1002 (Wireless door lock cannot operate)

[abu hafsah]

Hi, did you manage to get this fixed? Having the same problem with mine. TIA

Edited April 23 by abu hafsah

[Bryan Law]

Jackie, did u get the car fix finally