LS 400 V8-4.0L (1UZ-FE) (1990)
Speedometer Head: All Technical Service Bulletins
Speed Sensor (No 1) - Design Change
ELECTRICAL 003 12-21-90 LS400
Title
DESIGN CHANGE OF # 1 SPEED SENSOR ON LS400
A design change to the internal connections of # 1 speed sensor has been made. The identification method below distinguish between the early and late
design parts.
The IC terminals have the following modification:
PRODUCTION EFFECTIVE:
Starting VIN:
P/D:
JT8UF11E*L0028443
3/90
PART NUMBER INFORMATION:
Affected Part Number:
Description:
P/N 83181-50010
Sensor, Speedometer
Part Number remains unchanged.
Build Date Number Location
IDENTIFICATION METHOD:
The speed sensor has a Build Date Number on the flat surface of the sensor as shown below. New design parts will have a Build Date Number of 3K21
or greater.