This Morning i have gone outside to my 2006 Volvo V70 D5 having no power to the dash, centre console or seats

My son has come round and scanned and given me the below codes:

Engine
4490 - EGR Positiion Sensor. Signal Too High
6661 - Glow Relay Control Signal Too Low
6662 - Glow Relay Control Faulty Signal
6663 - Glow Relay Control Faulty Signal
6664 - Glow Relay Control Faulty Signal
1880 - Swirl actuator control offset fault
2810 - heated oxygen sensor (H028) Faulty Signal
1540 - Turbo control pressure too high
6900 - Malfuncation indicator Lamp (MIL) faulty signal

Transmission
0A02 - Control module communication signal missing from brake controle module (BCM)
DD01 - Control module communication fault
DD10 - Control Module Communication fault

Antilock Brakes
0130 -brake pressure sensor 1, signal too low
0150 brake lamp switch signal outside premitted range

Central Electronic Module
8F12 - beam setting control signal too low
8F18 - Xenon Lamp left Signal Too High/Signal Missing
8F1C - Xenon Lamp right signal too high/signal missing
8B01 - Position lamp relay signal too high
3F03 - Shift Lock signal. Signal Missing
1A55 - Communication with the climate control module (CCM) signal missing
1A56 - Communication with the driver information module (DIM) signal missing
1A54 - Communciation with the power seat module (PSM signal missing
8F43 - Tailage washer motor relay. Signal too low

Airbag
00D5 = 8R8 indicatorlamp. signal missing


Tire pressure monitoring system (upper electrical module)
0004 - siren.communication fault


can anyone assist with what might be the issue? Everything was working fine yesterday.

I have looked through some older posts and unplugged the battery, discharged the cables and reconnected the battery with the key in POS 2. i have also tried the lock and unlock 5 times.

Any help would be appreciated.

Bob

 

All the communication codes indicate a problem with the CAN network. A common problem is water damage to the CEM - Solution is a new/repaired CEM. Don't know who does that in your part of the world, but xemodex.com fixes those in my part of the world.

 

I had something very similar last year. No power to the car and basically the network was offline. After 10 hours of diagnostics it turned out to be a failed relay located on the underside of the main fuse board in the engine bay. Relay cost less than £9 to replace. I was ecstatic as the car is mint and I couldn’t face scrapping it, but the diagnostic costs were eye watering.

 

Yep, unfortunately - many "automotive technicians" are not capable of understanding electrical systems.