Stop Light Sign - Lights Up When Switching Headlights
87porsche06Subject: "Stop Light" Sign Lights Up
When Switching Headlights
Model
928S/928 S4
Group
9
Part Identifier
9493
Number
8710
September 4, 1987
Model Years 1986 and 1987
The "Stop Light" sign in the combination instrument may light up when switching low beam headlights on or off. This could be caused by an insufficient bulb tester ground connection.
The ground wire in the bulb tester wiring harness was increased in size to 1.5 mm gauge (was 0.5 mm gauge).
From Production Date: July 11, 1986
VIN 92 6 HS 86 0066
When repairing cars prior to the above VIN, disconnect brown wire female connector from bulb tester wiring plug terminal 9.
Connect 1.5 mm gauge brown wire to bulb tester plug terminal 9 and to MP V on fire wall behind C.E.B.
Refer to wiring diagram 928S Model 87, page 2 Field N1.
Parts required for modification:
1.5 mm gauge brown wire 950 mm long
N 17 516 2 Wire connector 6 mm
999 652 351 12 Female plug terminal