Toyota Celica Supra 1986 Service And Repair Manual page 668

BE-120
BODY ELECTRICAL SYSTEM -Trip Computer
TEST TROUBLE
c
MPG indication always 70 miles/gal or trip reading does not
chan~~t-
Does MPG always indicate 70
v ..
I Replace DISPLAY CLUSTER.
or trip reading not change?
No
<D
Does voltage change from 0 to 5V between terminals r and GND of 14-terminal connector
in accordance with fuel consumption?
No
Replace Keyboard.
l
NOTE: If tester indication can be verified, this check is okay.
Analog Type: Needle fluctuation'
Digital Type: Number change
1
14·tem'linal Connector of D ISPLAY CLUSTER
_ ¢
- u . u - . . . . .
I" a ·
I
T
Yes
I
Replace DISPLAY CLUSTER.