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Home >> Mercedes Benz >> 2002 >> SLK230 Automatic >> Repair and Diagnosis (Single Page) >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Sliding Roof, Soft Top -- 170 Chassis >> Self-Diagnostic System >> Vario roof (VR) diagnosis, fault memory (Fault Codes B1000, B1010, B1011, B1016, B1017, B1120, B1121, B1263, B1264, B1265, B1266, B1267, B1268, B1269, B1270, B1271, B1272, B1273, B1274, B1275, B1276, B1277, B1278, B1279, B1282, B1283, B1400, B1401, B1402, B1403, B1490, B1491, B1492, B1493, B1494) - AD77.50-P-4000A

Vario roof (VR) diagnosis, fault memory (Fault Codes B1000, B1010, B1011, B1016, B1017, B1120, B1121, B1263, B1264, B1265, B1266, B1267, B1268, B1269, B1270, B1271, B1272, B1273, B1274, B1275, B1276, B1277, B1278, B1279, B1282, B1283, B1400, B1401, B1402, B1403, B1490, B1491, B1492, B1493, B1494) - AD77.50-P-4000A

MODEL 170 

  Vario roof (VR) diagnosis, previous knowledge   AD77.50-P-2000A 
a Fuses OK    
b Battery voltage > 11 V    
c Connect up Hand-Held Tester   AD00.00-P-2000-03A
  Fault memory     
Fault code HAND-HELD TESTER Possible cause  Notes  Remedy 
B1000 Multi-function control unit (N10-3) faulty   Replace N10-3
B1010 Voltage terminal 30E < 10 V   AD77.50-P-6000-01A 
B1011 Voltage terminal 30E > 15 V   AD77.50-P-6000-01A 
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)   AD77.50-P-6000-05A 
B1120 Left front power window switch (front center console) (S21/1) sticks or lines SHORT-CIRCUIT TO GROUND   AD77.50-P-6000-20A 
B1121 Right front power window switch (front center console) (S21/2) sticks or lines SHORT-CIRCUIT TO GROUND   AD77.50-P-6000-24A 
B1263 Hydraulic unit temperature (A7/5) > 95 °C   AD77.50-P-6000-08A 
B1264 Hydraulic unit temperature (A7/5) > 120 °C   AD77.50-P-6000-08A 
B1265 Temperature sensor line OPEN-CIRCUIT , SHORT-CIRCUIT TO POSITIVE , SHORT-CIRCUIT   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 SHORT-CIRCUIT 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 SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-12A 
B1276 Left or right trunk lid "closed/locked" limit switch (S69/7, S69/8) sticks, line SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-13A 
B1277 Vario roof "open/lowered" limit switch (S69/11) sticks, line SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-11A 
B1278 Vario roof "closed" limit switch (S69/1) sticks, line SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-10A 
B1279 Right (S69/2) or left (S69/3) vario roof "locked" limit switch sticks, lines SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-09A 
B1282 Left front power window motor, no block-type current or multi-function control module (N10-3)   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)   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)
SHORT-CIRCUIT TO POSITIVE , SHORT-CIRCUIT TO GROUND , or multi-function control module (N10-3)		   AD77.50-P-6000-07A 
B1491 Lines, trunk lid cylinder (A7/5y2)
SHORT-CIRCUIT TO POSITIVE , SHORT-CIRCUIT TO GROUND , or multi-function control module (N10-3)		   AD77.50-P-6000-32A 
B1492 Lines, vario roof solenoid valve (A7/5y1) SHORT-CIRCUIT TO POSITIVE , SHORT-CIRCUIT TO GROUND , or multi-function control module (N10-3)   AD77.50-P-6000-31A 
B1493 Gong control line SHORT-CIRCUIT TO GROUND , SHORT-CIRCUIT TO POSITIVE , OPEN-CIRCUIT   AD77.50-P-6000-33A 
B1494 Indicator lamp leads, vario roof switch (S84) SHORT-CIRCUIT TO POSITIVE , SHORT-CIRCUIT TO GROUND   AD77.50-P-6000-16A 
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