Mitsubishi 3000GT Service Manual page 872

SERVICE BRAKES
E-6 When diagnostic trouble 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 normal. In addition, normally it monitors whether
Remove and check the valve
IGNITION
relay.
SWITCH (IGil
No. 30-No. 87a: Continuity
No. 30-No. 87: No continuity
When battery voltage is ap-
plied between terminals No. 86
and No. 85.
No. 30-No. 87: Continuity
No. 30-No. 87a: No continuity
Install the valve relay
move the HU connector.
With the ignition key "ON",
does the v&age betv\;een the
tive voltage?
Connect the HU harness and
remove the ECU connector.
harness side connector terml-
TSB Revision
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 interrupted, this diagnostic trouble code will be
output.
Yes
and re-
Yes
No
Yes
Repair
harness.
Faulty harness in HU
Repair harness.
Repair harness.