DTC B1D9D:14 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4075500

Description

Rear roof link motor (RH) circuit malfunction

Detection condition

•  The retractable hardtop control module cannot receive a signal from the rear roof link motor (RH) while the rear roof link motor (RH) is operating.

Fail-safe

•  Stops retractable hardtop operation

Possible cause

•  Retractable hardtop control module power supply circuit malfunction

―  Short to ground in wiring harness between retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A

―  CABIN+ 50 A fuse malfunction

―  R_DECK R 30 A fuse malfunction

―  Open circuit in wiring harness between retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A

•  Short to ground in wiring harness between the following terminals:

―  Retractable hardtop control module terminal 3G and rear roof link motor (RH) terminal A

―  Retractable hardtop control module terminal 3C and rear roof link motor (RH) terminal E

•  Open circuit in wiring harness between the following terminals:

―  Retractable hardtop control module terminal 3G and rear roof link motor (RH) terminal A

―  Retractable hardtop control module terminal 3C and rear roof link motor (RH) terminal E

•  Rear roof link motor (RH) malfunction

•  Retractable hardtop control module malfunction

Description	Rear roof link motor (RH) circuit malfunction
Detection condition	• The retractable hardtop control module cannot receive a signal from the rear roof link motor (RH) while the rear roof link motor (RH) is operating.
Fail-safe	• Stops retractable hardtop operation
Possible cause	• Retractable hardtop control module power supply circuit malfunction ― Short to ground in wiring harness between retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A ― CABIN+ 50 A fuse malfunction ― R_DECK R 30 A fuse malfunction ― Open circuit in wiring harness between retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A • Short to ground in wiring harness between the following terminals: ― Retractable hardtop control module terminal 3G and rear roof link motor (RH) terminal A ― Retractable hardtop control module terminal 3C and rear roof link motor (RH) terminal E • Open circuit in wiring harness between the following terminals: ― Retractable hardtop control module terminal 3G and rear roof link motor (RH) terminal A ― Retractable hardtop control module terminal 3C and rear roof link motor (RH) terminal E • Rear roof link motor (RH) 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. (See CLEARING DTC [RETRACTABLE HARDTOP CONTROL MODULE].) • Retrieve the retractable hardtop control module DTCs using the M-MDS. (See DTC INSPECTION [RETRACTABLE HARDTOP CONTROL MODULE].) • Is the DTCs U3000:44/U3000:45/U3000:49 displayed?	Yes	Replace the retractable hardtop control module, then go to Step 6. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
1		No	Go to the next step.
2	VERIFY RETRACTABLE HARDTOP CONTROL MODULE POWER SUPPLY VOLTAGE • Measure the voltage at the following terminal (wiring harness-side): ― Retractable hardtop control module terminal 1C • Is the voltage B+?	Yes	Go to the next step.
2		No	Inspect the CABIN+B 50 A fuse, R_DECK R 30 A fuse. • Any fuse is blown: ― Refer to the wiring diagram and verify whether or not there is a common connector between the following: • Retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A 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. • Replace the fuse. • Any fuse is damaged: ― Replace the fuse. • All fuses are normal: ― Refer to the wiring diagram and verify whether or not there is a common connector between the following: • Retractable hardtop control module terminal 1C and DC-DC converter (i-ELOOP) terminal 4A 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 6.
3	INSPECT REAR ROOF LINK MOTOR (RH) CIRCUIT FOR SHORT TO GROUND • Switch the ignition off. • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Disconnect the retractable hardtop control module and rear roof link motor (RH) connectors. • Inspect for continuity between the following terminals (wiring harness-side) and body ground: ― Rear roof link motor (RH) terminal A ― Rear roof link motor (RH) terminal E • 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 3G and rear roof link motor (RH) terminal A • Retractable hardtop control module terminal 3C and rear roof link motor (RH) 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 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 6.
3		No	Go to the next step.
4	INSPECT REAR ROOF LINK MOTOR (RH) CIRCUIT FOR OPEN CIRCUIT • Verify that the retractable hardtop control module and rear roof link motor (RH) connectors are disconnected. • Inspect the wiring harness for continuity between the following terminals (wiring harness-side): ― Retractable hardtop control module terminal 3G and rear roof link motor (RH) terminal A ― Retractable hardtop control module terminal 3C and rear roof link motor (RH) terminal E • Is there continuity?	Yes	Go to the next step.
4		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 3G and rear roof link motor (RH) terminal A • Retractable hardtop control module terminal 3C and rear roof link motor (RH) 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 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 6.
5	INSPECT REAR ROOF LINK MOTOR (RH) • Inspect the rear roof link motor (RH). (See REAR ROOF LINK MOTOR INSPECTION.) • Is the rear roof link motor (RH) normal?	Yes	Go to the next step.
5		No	Replace the rear roof link motor (RH), then go to the next step. (See REAR ROOF LINK MOTOR REMOVAL/INSTALLATION.)
6	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Always reconnect all disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) • Clear the DTC for the retractable hardtop control module using the M-MDS. (See CLEARING DTC [RETRACTABLE HARDTOP CONTROL MODULE].) • Retrieve the retractable hardtop control module DTCs using the M-MDS. (See DTC INSPECTION [RETRACTABLE HARDTOP CONTROL MODULE].) • Is the same DTC displayed?	Yes	Repeat the inspection from Step 1. • If the malfunction recurs, replace the retractable hardtop control module. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.) Go to the next step.
6		No	Go to the next step.
7	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].)
7		No	DTC troubleshooting completed.