DTC B1DA8:23 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4077400

Description

Incorrect top lock position
Detection condition
•  The retractable hardtop control module detects the top lock switch ON condition for 30 s when the roof position is at a position other than fully-closed.
Fail-safe
•  Stops retractable hardtop operation
•  Inhibits the open retractable hardtop operation.
Possible cause
•  Short to ground in wiring harness between retractable hardtop control module terminal 1G and top lock switch terminal A
•  top lock switch 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 TOP LOCK SWITCH CIRCUIT FOR SHORT TO GROUND
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the retractable hardtop control module and top lock switch connectors.
•  Inspect for continuity between the following terminal (wiring harness-side) and body ground:
―  Top lock switch terminal A
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Retractable hardtop control module terminal 1G and top lock switch terminal A
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 ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 4.
No
Go to the next step.
3
INSPECT TOP LOCK SWITCH
•  Inspect the top lock switch.
•  Is the top lock switch normal?
Yes
Go to the next step.
No
Replace the top lock switch, then go to the next step.
(See TOP LOCK STRIKER 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.