B170B

B170B ROOF OPEN/CLOSE SWITCH





DTC Logic

DTC DETECTION LOGIC

NOTE:
If two or more DTCs are detected, Retractable Hard Top Control Unit, and determine trouble diagnosis order.






DTC CONFIRMATION PROCEDURE
1.CHECK ROOF OPEN/CLOSE SWITCH SIGNAL
1. Start engine.
2. Operate retractable hard top to fully open and fully close.
3. Check DTC.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK ROOF OPEN/CLOSE SWITCH POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect roof open/close switch harness connector.
3. Turn ignition switch ON.
4. Check the voltage between roof open/close switch harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK ROOF OPEN/CLOSE SWITCH POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect retractable hard top control unit harness connector.
3. Check the continuity between retractable hard top control unit harness connector and roof open/close switch harness connector.





4. Check harness for short to ground.
Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace harness.
3.CHECK ROOF OPEN/CLOSE SWITCH
Check roof open/close switch. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 4.
NO - Replace roof open/close switch. Component Parts.
4.REPLACE RETRACTABLE HARD TOP CONTROL UNIT
Replace retractable hard top control unit. Service and Repair.
Is the inspection result normal?
YES - INSPECTION END
NO - GO TO 5.
5.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- INSPECTION END




Component Inspection
1.CHECK ROOF OPEN/CLOSE SWITCH
1. Turn ignition switch OFF.
2. Disconnect roof open/close switch harness connector.
3. Check the continuity between roof open/close switch terminals under the following conditions.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace roof open/close switch. Component Parts.