B171A

DTC Logic


DTC DETECTION LOGIC

NOTE:
If two or more DTCs are detected, Related Tests, Information And Procedures, and determine trouble diagnosis order.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine.
2.Operate soft top to fully open and fully close.
3.Select "Self Diagnostic Result" mode of "CONVERTIBLE ROOF" using CONSULT.
4.Check DTC.
Is DTC detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK FUSIBLE LINK

Check 40A fusible link (letter I).
Is the inspection result normal?
YES- GO TO 2.
NO- Replace fusible link after repairing the applicable circuit.

2. CHECK HYDRAULIC PUMP RELAY 1 POWER SUPPLY CIRCUIT-I

1.Turn ignition switch OFF.
2.Disconnect hydraulic unit harness connector.
3.Check the voltage between hydraulic unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 3.

3. CHECK HYDRAULIC PUMP RELAY 1 POWER SUPPLY CIRCUIT-II

1.Disconnect circuit breaker harness connector.
2.Check the continuity between hydraulic unit harness connector and circuit breaker harness connector.





3.Also check harness for short to ground.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair open circuit or short to ground in harness or connectors.

4. CHECK CIRCUIT BREAKER

Check circuit breaker. .
Is the inspection result normal?
YES- Repair the harness or connector between circuit breaker and fusible link.
NO- Replace circuit breaker.

5. CHECK CONTINUITY HYDRAULIC UNIT AND SOFT TOP CONTROL UNIT

1.Disconnect soft top control unit harness connector.
2.Check the continuity between hydraulic unit harness connector and soft top control unit harness connector.





3.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 6.
NO- Repair open circuit, short to ground and short to power.

6. REPLACE HYDRAULIC UNIT

Replace hydraulic unit. Removal And Installation.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 7.

7. REPLACE SOFT TOP CONTROL UNIT

Replace soft top control unit. Removal And Installation.
Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 8.

8. CHECK INTERMITTENT INCIDENT

Intermittent Incident Regular Grade.
- INSPECTION END


Component Inspection


1. CHECK CIRCUIT BREAKER

1.Turn ignition switch OFF.
2.Disconnect circuit breaker harness connector.
3.Check resistance between circuit breaker terminals as follows.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace circuit breaker.