P1564
P1564 ASCD Steering SwitchComponent Description
ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation of switch, and determines which button is operated.
Refer to [ASCD: System Description] for the ASCD function.
On Board Diagnosis Logic
This self-diagnosis has the one trip detection logic. The MIL will not illuminate for this diagnosis.
NOTE: If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. P0605
P1564:
DTC Confirmation Procedure
NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next step.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
WITH SDT
1. Turn ignition switch ON and wait at least 10 seconds.
2. Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.
3. Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.
4. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 seconds.
5. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.
6. Check DTC.
7. If DTC is detected, go to [P1564 ASCD Steering Switch].
Diagnosis Procedure
Step 1:
Step 2:
Step 3-8:
Component Inspection
ASCD STEERING SWITCH
1. Disconnect combination switch (spiral cable).
2. Check continuity between combination switch (spiral cable) terminals 14 and 15 with pushing each switch.
