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SEL417V
FAIL-SAFE SYSTEM CHECK
=NAEL0375S02
1. Turn ignition switch to ON position.
2. Turn ASCD main switch to ON and check if the SET indicator
blinks.
If the indicator lamp blinks, check the following.
I ASCD steering switch. Refer to EL-261.
SEL767P
3. Drive the vehicle at more than 40 km/h (25 MPH) and push
SET/COAST switch.
If the indicator lamp blinks, check the following.
I Vehicle speed signal. Refer to EL-262.
I ASCD pump circuit. Refer to EL-262.
I Replace control unit.
SAT797A
4. Depress brake pedal slowly (brake pedal should be depressed
more than 5 seconds).
If the indicator lamp blinks, check the following.
I ASCD brake/stop lamp switch. Refer to EL-260.
5. END. (System is OK.)
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
Trouble Diagnoses (Cont’d)
EL-258
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