DTC B1DA8:24 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4077500

Description

Incorrect top lock position
Detection condition
•  The retractable hardtop control module detects that the number of times the top lock switch operates exceeds the maximum.
Fail-safe
•  Stops retractable hardtop operation and reverses rotation to unlock position
•  Inhibits the open retractable hardtop operation.
Possible cause
•  Open circuit in wiring harness between retractable hardtop control module terminal 1G and top lock switch terminal A
•  Open circuit in wiring harness between top lock switch terminal B and body ground
•  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 5.
(See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
2
INSPECT TOP LOCK SWITCH CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Disconnect the negative battery cable.
•  Disconnect the retractable hardtop control module and top lock switch connectors.
•  Inspect the wiring harness for continuity between the following terminals (wiring harness-side):
―  Retractable hardtop control module terminal 1G and top lock switch terminal A
•  Is there continuity?
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 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 an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 5.
3
INSPECT TOP LOCK SWITCH CIRCUIT FOR OPEN CIRCUIT
•  Verify that the retractable hardtop control module and top lock switch connectors are disconnected.
•  Inspect the wiring harness for continuity between the top lock switch terminal B (wiring harness-side) and body ground:
•  Is there continuity?
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:
•  Top lock switch terminal B and body ground
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 an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 5.
4
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.)
5
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery cable.
•  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.
6
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.