BONG INACTIVE SUSPENSION, HDC fault

[Roverlord off road spares]

I am haunted by this fault over the last week, I can reset it, but it comes back if I do a bump on the road, so I am assuming it is a sensor, Maybe that roo did some damage underneath.
So it's going to be some investigation time. GRRR.

iidtool shoes these, from what I can together, one fault can trigger a chain reaction . So will start with the ABS sensors and height control sensors and see if there is a broken wire that may be triggering this.
Alt is pumping out 14v and battery is reasonably new, so doubt its an under voltage problem. Will also check and clean some body earths ,

Suggestions welcome if any one has have this before.

ABS-Brake Module

• 0x5A Temporary system deactivation

• 0x68 Steering angle sensor ECU internal fault
EAS-Suspension

• 0x32 CAN bus Fault
IP-Instrument Pack

• 0xBD EBV function fault received from ABS ECU
LCM-Light Control v11

• 0xC ECU EEPROM fault

• 0x57 Air suspension active/inactive

SASM-Steering Angle

• 0x4 Steering angle sensor fault during normal operation

[Homestar]

When mine did that it was the front right wheel height sensor out of range. Only did it occasionally - usually when I hit a bump.

[Russrobe]

How does it drive? I got the steering angle sensor errors when my wheel alignment was out badly. My steering wheel was out about 20° though!!

[Roverlord off road spares]

How does it drive? I got the steering angle sensor errors when my wheel alignment was out badly. My steering wheel was out about 20° though!!Dives ok. no issues there.

[Roverlord off road spares]

When mine did that it was the front right wheel height sensor out of range. Only did it occasionally - usually when I hit a bump.

Well I raided my stock and pinched 2 front height sensors ( I shouldn't do that, I'll go Broke LOL.) I notice the New Genuine Land Rover ones have a part superseded number and Land Rover uses a plastic connecting link instead of the original steel link. Cheap skates.
I found the connector plugs had retainer broken clips on the plug but they were pretty tight though. I fitted the new height sensors and cleared faults, she rose to correct height and I took her for a drive, she seemed too ride better, drove for a few kms, then "Bong" and the faults came back, [bawl] so I'm going to have to spend some more time looking at earths and connectors. Fault codes on IIdtoolBt only give a general fault code and description, but it doesn't pin point the actual point of fault eg, if it is a left wheel sensor or the like.

I had to spend money on her the other day and raided the larder for a couple of new rear upper tail gate struts that decided to go and hit me on the head the other cold morning.[bawl]
Cheers, Mario

[Homestar]

Bugger. Yeah, the replacement I bought had a plastic linkage but is still working fine to the best of my knowledge. Hope you track it down soon.

[Roverlord off road spares]

Bugger. Yeah, the replacement I bought had a plastic linkage but is still working fine to the best of my knowledge. Hope you track it down soon.
Gav, I'm going to unscrew all earth points I can find and clean them, there is body paint on all connections, just to eliminate a possible intermittent earth problem ,I'll wire brush and spray the connections with contact cleaner.
today's faults
The Can bus fault makes me think its a connection some where, and today I got a boot pressure sensor fault today, it has a new boost sensor I recently fitted.
The ABS ECU , there is an earth connection on the body, so will wire brush it and clean it.

ABS-Brake Module

• 0x5A Temporary system deactivation

• 0x68 Steering angle sensor ECU internal fault


EAS-Suspension

• 0x32 CAN bus Fault


ECM-Engine (DDE4)


• P0237-01 Boost pressure sensor malfunction - open circuit/short circuit to ground - General failure information - general electrical failure


IP-Instrument Pack

• 0xBD EBV function fault received from ABS ECU


LCM-Light Control v11

• 0xC ECU EEPROM fault

• 0x57 Air suspension active/inactive



SASM-Steering Angle

• 0x4 Steering angle sensor fault during normal operation

Cheers, Mario

[HemiDart]

Hey Mario do you remember how you fixed this I'm having similar problems

[Homestar]

Not sure what Mario found with his, but I had a wheel height sensor out of adjustment, but had this happen with low battery volts too.

[HemiDart]

Thank you I looked through the last log of the wheel sensors and Left rear shows 0. Have also had flat battery issues due to instruments not talking to LCM and LCM not talking to laptop.

[harlie]

There is a replacement part for the sensor plug itself - it is a plastic plug with 3 wires that needs to be soldered into the harness after the old is cut off. It is available as a genuine part and aftermarket so there must have been a few issues - I've not heard of the problems myself.....

part number: YMQ503220

Only reason I know about the part is I built a DIY electronic air suspension system for my home made caravan - using an Arduino as the ECU. L322 height sensors were the cheapest height sensor I could find at about $25 each. Then I stumbled across the plug as a tail, ranging from 14 to 60 quid in the UK, or $20 for 5 out of china [wink11]

sorry, bit side tracked - point is, there must have been issues with the harness side of the plug. I should have a spare (5th one) laying around....

[HemiDart]

Ok fixed most of my problems. I found today that a low battery can cause the steering angle sensor to need a reset. If the steering angle sensor is not reset immediately after the low voltage then the can bus triggers the below faults.

ABS-Brake Module

Hill descent fault

• 0x5A Temporary system deactivation

• 0x68 Steering angle sensor ECU internal fault
EAS-Suspension

• 0x32 CAN bus Fault
IP-Instrument Pack

• 0xBD EBV function fault received from ABS ECU
LCM-Light Control v11

• 0xC ECU EEPROM fault

• 0x57 Air suspension active/inactive

SASM-Steering Angle

• 0x4 Steering angle sensor fault during normal operation

you may get one, some or all of these faults due to the affected systems needing the can bus readings from the steering angle sensor.

I have replaced the battery and reset the steering angle sensor using these steps. (https://www.youtube.com/watch?v=cYArMz-rdgE)

Range Rover MKIII - Reset Steering Angle Sensor - YouTube (https://www.youtube.com/watch?v=cYArMz-rdgE)

Most of the problems are now fixed