DTC B1DA6:29 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4077200

Description

Incorrect top lock position
Detection condition
•  The retractable hardtop control module detects an incorrect top lock position.
Fail-safe
•  Stops retractable hardtop operation
Possible cause
•  Short to ground in wiring harness between the following terminals:
―  Retractable hardtop control module terminal 1G and top lock switch terminal A
―  Retractable hardtop control module terminal 4L and front roof link limit switch (LH) terminal C
•  Top lock switch malfunction
•  Short to ground in wiring harness between the following terminals:
―  Retractable hardtop control module terminal 4L and front roof link limit switch (LH) terminal C
―  Retractable hardtop control module terminal 4M and front roof link limit switch (LH) terminal D
―  Retractable hardtop control module terminal 4K and front roof link limit switch (LH) terminal B
•  Front roof link limit switch (LH) malfunction
•  Short to ground in wiring harness between the following terminals:
―  Retractable hardtop control module terminal 4I and rear roof link limit switch (LH) terminal A
―  Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
•  Short to ground in wiring harness between the following terminals:
―  Retractable hardtop control module terminal 1G and top lock switch terminal A
―  Retractable hardtop control module terminal 4L and front roof link limit switch (LH) terminal C
―  Retractable hardtop control module terminal 4M and front roof link limit switch (LH) terminal D
―  Retractable hardtop control module terminal 4K and front roof link limit switch (LH) terminal B
―  Retractable hardtop control module terminal 4I and rear roof link limit switch (LH) terminal A
―  Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
•  Rear roof link limit switch (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 8.
(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 cable.
•  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 8.
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 Step 8.
(See TOP LOCK STRIKER REMOVAL/INSTALLATION.)
4
INSPECT FRONT ROOF LINK LIMIT SWITCH (LH) CIRCUIT FOR SHORT TO GROUND
•  Disconnect the front roof link limit switch (LH) connectors.
•  Verify that the retractable hardtop control module and front roof link limit switch (LH) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Front roof link limit switch (LH) terminal C
―  Front roof link limit switch (LH) terminal D
―  Front roof link limit switch (LH) terminal B
•  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 4L and front roof link limit switch (LH) terminal C
•  Retractable hardtop control module terminal 4M and front roof link limit switch (LH) terminal D
•  Retractable hardtop control module terminal 4K and front roof link limit switch (LH) terminal B
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 8.
No
Go to the next step.
5
INSPECT FRONT ROOF LINK LIMIT SWITCH (LH)
•  Inspect the front roof link limit switch (LH).
•  Is the front roof link limit switch (LH) normal?
Yes
Go to the next step.
No
Replace the front roof link limit switch (LH), then go to Step 8.
(See ROOF LINK LIMIT SWITCH REMOVAL/INSTALLATION.)
6
INSPECT REAR ROOF LINK LIMIT SWITCH (LH) CIRCUIT FOR SHORT TO GROUND
•  Disconnect the rear roof link limit switch (LH) connectors.
•  Verify that the retractable hardtop control module and rear roof link limit switch (LH) connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
―  Rear roof link limit switch (LH) terminal A
―  Rear roof link limit switch (LH) terminal C
•  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 4I and rear roof link limit switch (LH) terminal A
•  Retractable hardtop control module terminal 4F and rear roof link limit switch (LH) terminal C
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 8.
No
Go to the next step.
7
INSPECT REAR ROOF LINK LIMIT SWITCH (LH)
•  Inspect the rear roof link limit switch (LH).
•  Is the rear roof link limit switch (LH) normal?
Yes
Go to the next step.
No
Replace the rear roof link limit switch (LH), then go to the next step.
(See REAR ROOF LINK LIMIT SWITCH REMOVAL/INSTALLATION.)
8
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.
9
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.