Power Liftgate Nonfunctional (LI80.20-P-045836)
Publication date: 2009-01-27Reference number: LI80.20-P-045836
Supersedes refnos: 80.20/45, 80.20/45A
POWER LIFTGATE NONFUNCTIONAL
TECHNICAL SERVICE BULLETIN
Reference Number(s): LI80.20-P-045836 Version 1 (T-B-80.20/45A, October 28, 2008), Date of Issue:
January 27, 2009
Superceded Bulletin(s): T-B-80.20/45, Date of Issue:
November 14, 2007
| Mercedes-Benz: | Model 164.122/175/177/186/822/871 with SA Code 890 (Power Liftgate); Model 251.122/165/175/177 with SA Code 890 (Power Liftgate) |
| Design Group: | 80.20 Central locking system |
| Reason For Change: |
COMPLAINT
Tailgate not functioning and fault code 9000 "Control unit N121/1 (Rear-end door closing module) is defective" is present or stored in the Rear-End Door Closing control unit (REDC).
CAUSE
Software error inside the REDC.
REMEDY
Replace the REDC with the part number listed below or its successor. Refer to WIS document AR72.20-P-7551GZ (164) or AR72.20-P-7551RT (251).
NOTE:
The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on October 28, 2008. Please refer to Netstar -> Star TekInfo -> Star Time for the most current labor time allowance.
SYMPTOMS
SYMPTOMS
| Body / Does not open / Door/Flap / Trunk lid/liftgate / Hood/flap / |
| Body / Does not close / Door/Flap / Trunk lid/liftgate / Hood/flap / |
CONTROL UNIT/FAULT CODE
CONTROL UNIT/FAULT CODE
| Control unit | Fault code | Fault text |
|---|---|---|
| REDC-Rear-end door closing control module (HDS1) | 9000 | Control unit N121/1 (Rear-end door closing control module) is defective. Please refer to note. |
PARTS
PARTS
| Part number | Designation | Qty | Note | EPC | Non- EPC |
|---|---|---|---|---|---|
| A164 870 11 26 | Rear-end door closing control unit | 1 | X |
WORK UNITS
WORK UNITS
| Op. no. | Operation text | Time | Damage code | Note |
|---|---|---|---|---|
| 54-1011 | SHORT TEST, PERFORM | 0.3 hrs. | 8210H 90 | Model Indicator (s): BA, BB, BC, BD, EA, EB, Z1, Z2, Z3, Z4 |
| 80-2925 | CONTROL UNIT - AUTO LIFTGATE (AFTER TEST), R & R/REPLACE | 0.3 hrs. | BA, BB, BC, BD, Z1, Z2, Z3, Z4 | |
| 80-2925 | CONTROL UNIT - AUTO LIFTGATE (AFTER TEST), R & R/REPLACE | 0.5 hrs. | EA, EB |
WIS-REFERENCES
WIS-REFERENCES
| Document number | Title | Note | Allocation |
|---|---|---|---|
| AR72.20-P-7551GZ | Remove/install rear door closing control module | Remedy | |
| AR72.20-P-7551RT | Remove/install rear door closing control module | Remedy |