Mitsubishi 3000GT 1991 Service Manual page 765

SERVICE. BRAKES -
E-6 When diagnosis code "51 VALVE RELAY" is displayed
[Explanation]
When the ignition switch is turned ON, the ABS
ECU switches the valve relay OFF and ON for an
initial check, compares the voltage of the signal to
the valve relay and valve power monitor line voltage
to check whether the valve relay operation is
COMBINATION
METER
710 4
2
--- -- -
3
normal. In addition, normally it monitors whether or
not there is power in the valve power monitor line
since the valve relay is normally ON. If the supply of
power to the valve power monitor line is inter-
rupted, this trouble code will be output.
When the valve relay is checked,
are the following conditions
found?
No. 85 - No. 86: Resrstance
value 60 - 120 II
No. 30-No. 87a: Continuity
No. 30 - No. 87: No continuity
When batterv voltaoe
between terminalsho. 86 and
No. 85.
No. 30 - No. 87: Contrnurty
No. 30 - No. 87a: No continurty
With the ignition key "ON",
does the voltage between the
connector terminal No. 52 and
ground indicate battery voltage?
Connect the HU harness and
ground Indicate battery voltage.
TSB I vision
N o
Replace valve relay.
IS
o
Yes
Replace ABS ECIJ.
I
I