Trouble Codes
Power Top Control Module / PTCM
This is the "same" module as the Mercedes SLK R170 Vario Roof (VR) module. Codes for this module are therefor mapped to the Vario Roof ones.
These codes are mapped from the "Vario roof (VR) diagnosis, fault memory" (ad77.50-p-4000a) document
| DTC | Reason | Actions | WIS document |
|---|---|---|---|
| B1000 | [MB] Multi-function control unit (N10-3) faulty
[XF] Body Control Module (BCM) faulty |
Replace N10-3/BCM | |
| B1010 | Voltage terminal 30E under 10V | Check voltage between N10-3/BCM pin 61 and 75 | ad77.50-p-6000-01a |
| B1011 | Voltage terminal 30E over 15V | See B1010 | |
| B1016 | Terminal 31A missing (front power windows and inside light not functioning) | ad77.50-p-6000-02a | |
| B1017 | Terminal 31B missing (rear power windows and inside light not functioning)
[XF] Should not apply as crossfire does not have rear windows |
ad77.50-p-6000-05a | |
| B1120 | Left front power window switch (front center console) (S21/1) sticks or lines shorted to ground | ad77.50-p-6000-20a | |
| B1121 | Right front power window switch (front center console) (S21/1) sticks or lines shorted to ground | ad77.50-p-6000-24a | |
| B1263 | Hydraulic unit temperature (A7/5) above 95 degrees celsius | ad77.50-p-6000-08a | |
| B1264 | Hydraulic unit temperature (A7/5) above 120 degrees celsius | ad77.50-p-6000-08a | |
| B1265 | Temperature sensor line open circuit, high, or shorted | ad77.50-p-6000-08a | |
| B1266 | Soft top hydraulic unit (A7/5) blocked | ad77.50-p-6000-06a | |
| B1267 | Implausible status signal and speed signal at speed sensor | ad77.50-p-6000-34a
ad77.50-p-6000-35a | |
| B1268 | Status signal at speed sensor invalid | ad77.50-p-6000-34a | |
| B1269 | Vario roof switch (S84) or supply lead shorted to ground | ad77.50-p-6000-17a | |
| B1270 | Trunk lid "open" limit switch (S69/9) and left or right trunk lid "closed/locked" limit switch (S69/7 or S69/8) actuated simultaneously | ad77.50-p-6000-12a
ad77.50-p-6000-13a | |
| B1271 | Vario roof "open/lowered" limit switch (S69/11) and vario roof "closed" limit switch (S69/1) actuated simultaneously | ad77.50-p-6000-10a
ad77.50-p-6000-11a | |
| B1272 | Limit switch signals S69/1, S69/2, S69/3 and S69/11 implausible i.e.:
Vario roof "locked" limit switch, left (S69/3) and/or right (S69/2), actuated, whereas vario roof "open/lowered" limit switch (S69/11) and vario roof "closed" limit switch (S69/1) not actuated |
ad77.50-p-6000-09a
ad77.50-p-6000-10a ad77.50-p-6000-11a | |
| B1273 | Limit switch signals S69/1, S69/7, S69/8 and S69/11 implausible, i.e.:
trunk lid "closed/locked" limit switch, left (S69/7) and/or right (S69/8), actuated, whereas vario roof "open/lowered" limit switch (S69/11) and vario roof "closed" limit switch (S69/1) not actuated |
ad77.50-p-6000-10a
ad77.50-p-6000-11a ad77.50-p-6000-13a | |
| B1274 | No limit switch signal | ad77.50-p-2000-07a
ad77.50-p-2000-08a ad77.50-p-2000-09a ad77.50-p-2000-10a | |
| B1275 | Trunk lid limit switch (S69/9) sticks, line pulled to ground, pulled high, or open circuit | ad77.50-p-6000-12a | |
| B1276 | Left or right trunk lid "closed/locked" limit switch (S69/7, S69/8) sticks, line pulled to ground, pulled high, or open circuit | ad77.50-p-6000-13a | |
| B1277 | Vario roof "open/lowered" limit switch (S69/11) sticks, line pulled to ground, pulled high, or open circuit | ad77.50-p-6000-11a | |
| B1278 | Vario roof "closed" limit switch (S69/1) sticks, line pulled to ground, pulled high, or open circuit | ad77.50-p-6000-10a | |
| B1279 | Right (S69/2) or left (S69/3) vario roof "locked" limit switch sticks, line pulled to ground, pulled high, or open circuit | ad77.50-p-6000-09a | |
| B1282 | Left front power window motor, no block-type current or multi-function control module (N10-3) | Check left front power window motor (M10/3), N10-3 | |
| B1283 | Right front power window motor, no block-type current or multi-function control module (N10-3) | Check right front power window motor (M10/4), N10-3 | |
| B1400 | Left front power window, M10/3 or terminal 30A or multi-function control module (N10-3) | ad77.50-p-6000-02a
ad77.50-p-6000-21a ad77.50-p-6000-22a | |
| B1401 | Right front power window, M10/4 or terminal 30A or multi-function control module (N10-3) | ad77.50-p-6000-02a
ad77.50-p-6000-25a ad77.50-p-6000-26a | |
| B1402 | Left rear power window, M10/5 or terminal 30B or multi-function control module (N10-3) | ad77.50-p-6000-05a
ad77.50-p-6000-27a ad77.50-p-6000-28a | |
| B1403 | Right rear power window, M10/6 or terminal 30B or multi-function control module (N10-3) | ad77.50-p-6000-05a
ad77.50-p-6000-29a ad77.50-p-6000-30a | |
| B1490 | Lines, pump relay (A7/5k1) pulled high, pulled low, or multi-function control module (N10-3) | ad77.50-p-6000-07a | |
| B1491 | Lines, trunk lid cylinder (A7/5y2) pulled high, pulled low, or multi-function control module (N10-3) | ad77.50-p-6000-32a | |
| B1492 | Lines, vario roof solenoid valve (A7/5y1) pulled high, pulled low, or multi-function control module (N10-3) | ad77.50-p-6000-31a | |
| B1493 | Gong control line pulled low, pulled high, or short circuit | ad77.50-p-6000-33a | |
| B1494 | Indicator lamp leads, vario roof switch (S84) pulled high, or pulled low | ad77.50-p-6000-16a | |