DTC B1D9E:79 [RETRACTABLE HARDTOP CONTROL MODULE]

id0902r4075900

Description

Exceeds maximum number of pulse counts for rear roof link motor (LH)

Detection condition

•  The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the rear roof link motor (LH).

Fail-safe

•  Stops retractable hardtop operation

Possible cause

•  Rear roof link motor (LH) is disengaged from rear roof link (motor idling)

•  Rear roof link motor (LH) malfunction

•  Retractable hardtop control module malfunction

System wiring diagram

Not applicable

Description	Exceeds maximum number of pulse counts for rear roof link motor (LH)
Detection condition	• The retractable hardtop control module detects a pulse signal exceeding the maximum number of the pulse counts from the rear roof link motor (LH).
Fail-safe	• Stops retractable hardtop operation
Possible cause	• Rear roof link motor (LH) is disengaged from rear roof link (motor idling) • Rear roof link motor (LH) malfunction • Retractable hardtop control module malfunction
System wiring diagram	Not applicable

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 4. (See RETRACTABLE HARDTOP CONTROL MODULE REMOVAL/INSTALLATION.)
1		No	Go to the next step.
2	INSPECT REAR ROOF LINK • Verify if the rear roof link motor (LH) is disengaged from the rear roof link. • Is the rear roof link motor (LH) disengaged from the rear roof link?	Yes	Install the rear roof link motor (LH) to the correct position, then go to Step 4. (See REAR ROOF LINK MOTOR REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	INSPECT REAR ROOF LINK MOTOR (LH) • Inspect the rear roof link motor (LH). (See REAR ROOF LINK MOTOR INSPECTION.) • Is the rear roof link motor (LH) normal?	Yes	Go to the next step.
3		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 • 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.
4		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].)
5		No	DTC troubleshooting completed.