The UK quattro Network
The UK's mobile Audi 5-cylinder mechanic - 07833 654800, 24x7
Specialist in turbos, quattros, electrics and non-starts
Lubrication System - Audi MB/1B/MC-2 engines
Checking control unit for oil pressure warning and oil pressure warning lamp
- Pull oil pressure warning controller (J114, control number 234) out of auxiliary relay panel position 6
- Connect diode test lamp to pins 4 and 5 of relay socket
- Switch on ignition - diode must light up. If not, reverse contacts. If still dead, check for open circuit.
- Connect diode light to contacts 5 and 8
- Operate starter - diode must flash. If engine starts, diode must light continuously
- Connect diode light between pins 2 and 4 - switch on ignition and diode should light
- Pull connector off terminal G on oil pressure sender - diode should go out
- Connect pin 8 of the relay socket to earth - oil warning light should light up
- If warning light inoperative, check bulb and circuit
- If all else fails,, replace oil pressure warning controller
Back to index
Kerbside Motors Home Page and Contact Information