Service Repair Manual

MPI SYSTEM
Check points
Air conditioner
relay
o Service data
o Item No.49
Check conditions
Test
specification
Probable cause of malfunction
o Engine: idle
Air conditioner
Air conditioner o If the air conditioner relay output is
after warm-up switch
relay abnormal, check the air conditioner
OFF
OFF
signal input circuit and the air
(compressor
conditioner system.
clutch non-
o If the activation of the air condi-
activation)
tioner compressor clutch is not
normal, check the compressor
ON
ON (compres-
clutch and the relay circuit.
sor clutch
activation)
Purge control
o Ignition switch: Actuator forced Operation
o Check the purge control solenoid
solenoid valve
ON
actuation
sound is valve.
o Actuator test
(Engine stop)
audible
o Check the purge control solenoid
o Item No.8
valve drive circuit.
EGR control
o Ignition switch:
Actuator forced Operation
o Check the EGR control solenoid
solenoid valve
ON
actuation
sound is valve.
[California vehicle (Engine stop)
audible
o Check the EGR control solenoid
only)
valve drive circuit.
o Actuator test
o Item No.10
31-43