AD80.35-P-4000A | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory | 10.2.97 |
MODEL 129, 140 as of 1.6.97,
168,
170 as of 1.6.97
MODEL 170
with CODE (491) USA version
with CODE (498) Japanese version
Radio frequency locking/remote central locking (RFL/RCL), diagnosis, basic knowledge | |||
Connect hand-held tester according to connection schematic | |||
| Fuses in order | ||
| Battery voltage > 11 V | ||
| Unlock vehicle with remote control | ||
| Ignition: ON | ||
DTC memory | |||
Fault code | Possible cause | Notes | Remedy |
| Radio frequency DAS control module (N54/3) or radio frequency/infrared DAS control module (N54/4) | Replace N54/3 or N54/4 | |
| Signal from control line SN1 when unlocking PSE/CL, CF, ATA + or – | ||
| Signal from control line SN2 when locking PSE/CL, CF, ATA + or – | Model 168: DTC SN2 – can be ignored | |
| IR signal control line from left front door IR receiver (A26/1) – | ||
| IR signal control line from right front door IR receiver (A26/2) – | ||
| Incorrect engine control enable code (CAN) | ||
| Incorrect enable code of engine control left cylinder bank (CAN) | ||
| Transponder invalid | Transmitter key defective - replace Erase fault memory | |
| Coil (L11) for transponder, energy was not able to be built up | ||
| Actuation of lock confirmation relay (k54) or combination relay module (N10/2) + or – |
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