2007 XC90 Replaced ABS Sensor-DSTC Blinking with Power Loss

zakmuh · Nov 17th, 2021, 20:11

Evening,

I had DSTC and ABS lights on with Brake Assist Service Required message in my XC90. Scanned it and it was the faulty LF (left front) ABS sensor - no signal. Got the sensor replaced and cleared the codes.

No more lights or messages but when trying to move the car (going over 5mph) DSTC blinks with power loss and when stopping the car there is a kick-back in the pedal. So:

1. Tried driving turning DSTC OFF then the LF brake gets applied automatically-stopping the car moving.
2. Tried driving disconnecting the LF sensor - DSTC and ABS lights come on but car drives all fine
3.Checked the new sensor and the wires for any damages- nothing wrong externally.

Should brakes/ABS need aligning or calibrating..anything like that?

I'd highly appreciate if anyone could help me with this.

Zak

Simmy · Nov 17th, 2021, 23:08

have you checked the reluctor rings for cracks /splits?

zakmuh · Nov 18th, 2021, 06:43

Yeah Ive checked it, all okay. I tired putting back the old sensor then I get faulty signal as before

gmonag · Nov 18th, 2021, 09:48

Where did you get the new sensor? What part no?

SwissXC90 · Nov 18th, 2021, 09:57

Did you check all 4 wheels for constant and same wheel pulses?

All wheels must produce reliable wheel pulses.

zakmuh · Nov 18th, 2021, 13:22

Got the part from Eurocar parts. DO you think the new sensor is not compatible or faulty?

No I haven't checked the pulse yet.

Nov 17th, 2021, 20:11	#1
zakmuh Junior Member Last Online: Apr 25th, 2022 11:15 Join Date: May 2016 Location: Nottingham	2007 XC90 Replaced ABS Sensor-DSTC Blinking with Power Loss Evening, I had DSTC and ABS lights on with Brake Assist Service Required message in my XC90. Scanned it and it was the faulty LF (left front) ABS sensor - no signal. Got the sensor replaced and cleared the codes. No more lights or messages but when trying to move the car (going over 5mph) DSTC blinks with power loss and when stopping the car there is a kick-back in the pedal. So: 1. Tried driving turning DSTC OFF then the LF brake gets applied automatically-stopping the car moving. 2. Tried driving disconnecting the LF sensor - DSTC and ABS lights come on but car drives all fine 3.Checked the new sensor and the wires for any damages- nothing wrong externally. Should brakes/ABS need aligning or calibrating..anything like that? I'd highly appreciate if anyone could help me with this. Zak __________________ 2007 (Mk I) Volvo XC90 SE 2.4D D5 - 199,617 miles. Silver, black leather interior.

Nov 18th, 2021, 06:43	#3
zakmuh Junior Member Last Online: Apr 25th, 2022 11:15 Join Date: May 2016 Location: Nottingham	Yeah Ive checked it, all okay. I tired putting back the old sensor then I get faulty signal as before __________________ 2007 (Mk I) Volvo XC90 SE 2.4D D5 - 199,617 miles. Silver, black leather interior.

Nov 18th, 2021, 09:48	#4
gmonag Premier Member Last Online: Jan 15th, 2024 17:24 Join Date: Jun 2010 Location: Bury St Edmunds	Where did you get the new sensor? What part no? __________________ Greg

Nov 18th, 2021, 09:57	#5
SwissXC90 Premier Member Last Online: Mar 20th, 2024 18:26 Join Date: Jan 2016 Location: Cross Country	Did you check all 4 wheels for constant and same wheel pulses? All wheels must produce reliable wheel pulses. __________________ XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65.

Nov 18th, 2021, 13:22	#6
zakmuh Junior Member Last Online: Apr 25th, 2022 11:15 Join Date: May 2016 Location: Nottingham	Got the part from Eurocar parts. DO you think the new sensor is not compatible or faulty? No I haven't checked the pulse yet. __________________ 2007 (Mk I) Volvo XC90 SE 2.4D D5 - 199,617 miles. Silver, black leather interior.

Nov 17th, 2021, 23:08	#2
Simmy Premier Member Last Online: Yesterday 19:10 Join Date: Mar 2017 Location: Manchester	have you checked the reluctor rings for cracks /splits?

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