Ninety-Eight FWD V6-260 4.3L DSL (1985)
Speedometer Edgeboard Connector
N (PNK & BLK)
and
LOW
A
O (DK GRN)
and
LOW
B
P (BLK)
and
LOW
C
^
If the resistance is not low between all these terminals, replace the flexible printed circuit.
^
If the resistances are correct, replace the Speedometer assembly. (See "Cluster Disassembly".)
The Speedometer consists of:
-
the gauge mechanism.
-
the attached circuit board.
^
To confirm that the Speedometer assembly is not operating, connect I/P Tester J-33431 to circuit board, using 3-way connector J-33431-9. With
the tester plugged in and set to "On", "54 mph", and "60 Hz" the Speedometer should read 54 mph +/- 2 mph.
^
If the Speedometer does not indicate properly, the Speedometer is to be sent to an authorized AC-Delco Service Center for repair.
^
If the Speedometer operates properly, locate the condition in a vehicle circuit or connector.
Speedometer Is Not Accurate
1.
If the Speedometer indicates vehicle speed, but not the correct speed, check for:
^
correct tire inflation.
^
correct tire size.
^
correct speedometer drive gears in transaxle (see Section 7 of the chassis service manual).
2.
If these are correct, perform the electrical diagnosis as in "Speedometer Does Not Operate".
Odometers Do Not Operate
1.
If one or both of the Odometers do not turn, and the Speedometer does operate, remove the I/P cluster. See page 8C4-7 in the chassis service
manual for cluster removal.
