Golf Mk5 Dashboard lights don't turn on when key put in, can't start car - Volkswagen Forum - VW Forums for Volkwagen enthusiasts

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Old 06-08-2018, 01:36 PM
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Question Golf Mk5 Dashboard lights don't turn on when key put in, can't start car

Ok, so key goes in turn, and nothing, no lights on the dash, radio won't come on, no time displayed, windows, everything goes out. Can't even lock the car using remote.

Half hour later, can unlock the car using remote and starts like normal with clock reset. But every now and again all the dashboard and radio cuts off, dials all to zero for around 2-3 seconds, then all comes back to life (engine will keep running).

Might be unrelated but at idle sometimes headlights flicker and rev increases to 1100 and stays there for a about 10 mins during the drive. Idle returns to 800 after about 10 mins or by restarting engine.

On/off for about a month now, started off once a week, gotten worse, now at a point where it happens every other time I try to start the car. Car battery replaced less than a year ago and tested recently - good condition.

Any ideas/thoughts?

Below are the scan details:
P1601 - Relay for Supply Voltage Terminal 30 (J317), Implausible Signal
P1570 - Engine Start Blocked by Immobilizer

Power steering:
00446 - Function Limitation due to Under-Voltage
00778 - Steering Angle Sensor (G85)

Central electronics:
02071 - Local Databus
01024 - Rain Sensor (G213)
02385 - Rain / Light Recognition Sensor Function Restricted due to Under-Voltage
00153 - Left Windshield Wiper Motor (V216)
01598 - Drive Battery Voltage

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)
00932 - Electric Window Motor; Drivers Side (V147)

Front passenger's door:
01812 - Supply Voltage for Door Controller, Pass. Side (J387)
00933 - Electric Window Motor; Passengers Side (V148)

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

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

00668 - Supply Voltage Terminal 30

All help/advice is appreciated.
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Old 06-09-2018, 05:42 AM
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First posts normally go in introductions else you could get a free fix and we never see you again!!!

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That's a lot of error codes to big to post in a single reply.

As taken from my new EOBD II Fault Codes Software

I've approved your post.
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