Passat L4-1984cc 2.0L DOHC (1991)
Temperature Gauge: All Technical Service Bulletins
Fuel & Coolant Gauge - Inoperative or Malfunction
Group: 90
Number: 93-09
Date: June 30, 1993
Subject:
Fuel gauge and engine coolant temperature gauge malfunction
Model(s):
Passat/Corrado
From 1991 m.y.
This Technical Bulletin supersedes Technical Bulletin No. 90-93-05, dated May 31, 1993
Condition
Fuel gauge and engine coolant temperature gauge are inoperative or work intermittently.
Production
Improved VDO circuit boards installed as of 2/92, VIN 31N E 242 000
Service
Check to see if the voltage stabilizer terminals on the instrument panel circuit board are desoldered. If so, resolder the six connections to the circuit
board.
Do not replace circuit board.
Note
This procedure applies to vehicles with VDO circuit boards only. VDO circuit boards can be identified by voltage stabilizer in upper right hand corner
and VDO identification on speedometer.
Tools Needed
15 Watt soldering iron or pencil
Rosin core or multi-core electrical solder
Damp sponge
^
Desoldering wick
CAUTION
Do not use a soldering gun. These generally have a higher wattage output and can cause damage to circuit board.
Work Procedure
^
Remove instrument cluster from car
^
Remove Instrument panel circuit board from instrument cluster assembly.
