B2551

CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2551: Pulse Width Modulation Motor RH Power Supply Circuit Malfunction

DTC B2551 - Pulse Width Modulation Motor RH Power Supply Circuit Malfunction

DESCRIPTION

This circuit indicates the roof motor, luggage motor or luggage closer motor depending on which motor is being used.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ROOF RH, LGG RH)
(a) Remove the ROOF RH and LGG RH fuses from the luggage room junction block.
(b) Measure the resistance of the fuses.
Standard resistance:
Below 1 Ohms
NG -- REPLACE FUSE
OK -- Continue to next step.
2. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - BATTERY)




(a) Disconnect the S19 ECU connector.
(b) Measure the voltage of the wire harness side connector.
Standard voltage:






NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE SLIDING ROOF CONTROL ECU