DTC B1DA1:74 [RETRACTABLE HARDTOP CONTROL MODULE]


id0902r4076600

Description

Top lock motor operation time-out

Detection condition
•  The retractable hardtop control module detects that the top lock motor is operating for 10 s or more.
Fail-safe
•  Stops retractable hardtop operation
Possible cause
•  Retractable hardtop control module malfunction
•  Poor top lock motor installation
•  Top lock motor malfunction
System wiring diagram
Not applicable

Diagnostic Procedure

Step

Inspection

Action

1
VERIFY OTHER RETRACTABLE HARDTOP CONTROL MODULE DTCs
•  Clear the DTC for the retractable hardtop control module using the M-MDS.
•  Retrieve the retractable hardtop control module DTCs using the M-MDS.
•  Is the DTCs U3000:44/U3000:45/U3000:49 displayed?
Yes
Replace the retractable hardtop control module, then go to Step 4.
No
Go to the next step.
2
DETERMINE IF MALFUNCTION CAUSE IS POOR TOP LOCK MOTOR INSTALLATION
•  Verify that the top lock motor is installed to the correct position.
•  Is the top lock motor installed to the correct position?
Yes
Go to the next step.
No
Install the top lock motor to the correct position, then go to Step 4.
3
INSPECT TOP LOCK MOTOR
•  Inspect the top lock motor.
•  Is the top lock motor normal?
Yes
Go to the next step.
No
Replace the top lock motor , then go to the next step.
4
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Clear the DTC for the retractable hardtop control module using the M-MDS.
•  Retrieve the retractable hardtop control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the retractable hardtop control module.
Go to the next step.
No
Go to the next step.
5
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
No
DTC troubleshooting completed.