Return Pump Drive Circuit Troubles - Mitsubishi 1989-1993 GALANT Service Manual

ACTIVE-ELECTRONIC CONTROL SUSPENSION - Troubleshooting
R e t u r n p u m p r e l a y -
Operation
The return pump is activated when the pressure
within the low-pressure pressure tank increases to
140 kPa (20 psi) or higher, and then stops two
seconds after the pressure is reduced to 70 kPa (10
psi) or lower.
" 2
ECU
A thermal switch is provided at the motor circuit.
This thermal switch functions to interrupt the power
to the motor (in order to protect the return pump) if
the temperature within the return pump becomes
high.
Revision
TSB
assembly
Reserve tank