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ASCD ACTUATOR/PUMP CHECK
=NAEL0375S08
1 CHECK VACUUM HOSE
Check vacuum hose (between ASCD actuator and ASCD pump) for breakage, cracks or fracture.
MEL402G
OK or NG
OK © GO TO 2.
NG © Repair or replace hose.
2 CHECK ASCD WIRE
Check wire for improper installation, rust formation or breaks.
OK or NG
OK © GO TO 3.
NG © Repair or replace wire. Refer to “ASCD Wire Adjustment” (EL-267).
3 CHECK ASCD ACTUATOR
1. Disconnect vacuum hose from ASCD actuator.
2. Connect the hose of hand vacuum pump to ASCD actuator.
SEL264W
OK or NG
OK © GO TO 4.
NG © Replace ASCD actuator.
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Trouble Diagnoses (Cont’d)
EL-264
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