Please help! Intermittent all electronics disabled

[smaugc6]

Hi over past few months all the electronics in my car turn off. When this happens the remote doesn’t work, radio off, no dashboard lights, no trip comp, no interior lights, absolutely nothing. Sometimes I can hear a clicking sound coming from then dash / steering column area. Then around half an hour later I can put the key in and start and everything is back to normal like nothing happened. Also trip computer is dim. Cleared 27 faults and these 5 returned:

Power steering:
00778 - Steering Angle Sensor (G85)


Body/convenience system:
01135 - Interior Monitoring Sensors
00323 - Vehicle Inclination Sensor (G384)
01134 - Alarm Horn (H12)


Auxiliary heater:
00361 - Heating element for additional heating system (Z35)

Thanks

[smaugc6]

Btw it’s a mk5 golf 1.9 tdi 2006.

here is a full list of faults before being cleared.
Engine:
P161A
P161B
P161C
P161D


Power steering:
00778 - Steering Angle Sensor (G85)


Central electronics:
00188 - Control Circuit 1; Relay for Supply Voltage Terminal 50
00156 - Control for disk washer pump
02398 - Control circuit for rear windshield washer pump
01800 - Light Switch (E1)
02403 - Terminal 15 for interior
01049 - Supply Voltage (Terminal 50)
00187 - Control relay for voltage supply clamp 75X
02401 - Terminal 75x
01321 - Control Module for Airbags (J234)
01314 - Engine Control Module (ECM)


Body/convenience system:
01135 - Interior Monitoring Sensors
00323 - Vehicle Inclination Sensor (G384)
01134 - Alarm Horn (H12)
00668 - Supply Voltage Terminal 30


Driver's door:
01811 - Supply Voltage for Door Controller, Drivers Side (J386)


Front passenger's door:
01812 - Supply Voltage for Door Controller, Pass. Side (J387)


Rear left door:
01813 - Supply Voltage for Door Controller, Rear Left (J388)


Rear right door:
01814 - Supply Voltage for Door Controller, Rear Right (J388)


Steering wheel:
00446 - Function Limitation due to Under-Voltage
00446 - Function Limitation due to Under-Voltage


Heater & air conditioning:
00819 - High Pressure Sensor (G65)


Auxiliary heater:
00361 - Heating element for additional heating system (Z35)

[Crasher]

And the battery is how old?

[smaugc6]

Hi Crasher, It’s only about a year old, I’m going to try a friends battery on it and see what happens.

[Crasher]

Tell us how it goes.

[smaugc6]

Tried different battery still same issue. Had my battery tested was told all ok.

[Crasher]

Te code read you posted isn’t VCDS and so doesn’t tell us a huge amount about what is going on, using VCDS in measuring blocks for each controller you would be able to see the individual controller voltages but with the battery being known to be good you now need to start looking for corroded earth terminals on the nearside front inner wing below the headlight and there is the possibility of water in the engine bay fuse box although this a bit of a sketch to remove and check.