DTC B1D9F:94 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4076200

Description

Error signal received from rear roof link motor (LH)
Detection condition
•  The retractable hardtop control module receives a signal from the rear roof link motor (LH) while the rear roof link motor (LH) is not operating.
Fail-safe
•  Stops retractable hardtop operation
Possible cause
•  Short to power supply in wiring harness between the following terminals:
―  Retractable hardtop control module terminal 2A and rear roof link motor (LH) terminal A
―  Retractable hardtop control module terminal 2E and rear roof link motor (LH) terminal E
•  Rear roof link motor (LH) malfunction
•  Retractable hardtop control module malfunction

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.
(See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
2
INSPECT REAR ROOF LINK MOTOR (LH) CIRCUIT FOR SHORT TO POWER SUPPLY
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the retractable hardtop control module and rear roof link motor (LH) connectors.
•  Connect the negative battery terminal.
•  Switch the ignition ON (engine off or on).
•  Measure the voltage at the following terminals (wiring harness-side):
―  Rear roof link motor (LH) terminal A
―  Rear roof link motor (LH) terminal E
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Retractable hardtop control module terminal 2A and rear roof link motor (LH) terminal A
•  Retractable hardtop control module terminal 2E and rear roof link motor (LH) terminal E
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 4.
3
INSPECT REAR ROOF LINK MOTOR (LH)
•  Inspect the rear roof link motor (LH).
•  Is the rear roof link motor (LH) normal?
Yes
Go to the next step.
No
Replace the rear roof link motor (LH), then go to the next step.
(See REAR ROOF LINK MOTOR REMOVAL/INSTALLATION.)
4
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  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 Pending DTC present?
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.
(See DTC TABLE [RETRACTABLE HARDTOP CONTROL MODULE].)
No
DTC troubleshooting completed.