| J9 | Heated rear window relay |
| J104 | ABS control unit with EDL |
| J345 | Trailer detector control unit |
| J389 | Rear right door control unit |
| J446 | Parking aid control unit |
| J519 | Onboard supply control unit |
| J526 | Telephone and telematics control unit |
| J605 | Rear lid control unit |
| J646 | Transfer box control unit |
| SC1 | Fuse 1 on fuse holder |
| SC2 | Fuse 2 on fuse holder |
| SC3 | Fuse 3 on fuse holder |
| SC4 | Fuse 4 on fuse holder |
| SC5 | Fuse 5 on fuse holder |
| SC6 | Fuse 6 on fuse holder |
| SC7 | Fuse 7 on fuse holder |
| SC14 | Fuse 14 on fuse holder |
| SC15 | Fuse 15 on fuse holder |
| SC16 | Fuse 16 on fuse holder |
| SC17 | Fuse 17 on fuse holder |
| SC18 | Fuse 18 on fuse holder |
| T4ac | 4-pin connector, coupling point right B-pillar |
| T6d | 6-pin connector |
| T12c | 12-pin connector, on rear lid control unit |
| T16m | 16-pin connector, on parking aid control unit |
| T18a | 18-pin connector, on telephone / telematics control unit |
| T47a | 47-pin connector, on transfer box control unit |
| T47b | 47-pin connector, on ABS control unit with EDL |
| W3 | Luggage compartment light |
| B301 | Positive connection -5- (30), in main wiring harness |
| W20 | Positive connection (30a), in rear wiring harness |
| E265 | Operating and display unit for rear Climatronic |
| J217 | Automatic gearbox control unit |
| J255 | Climatronic control unit |
| J521 | Front passenger seat adjustment with memory control unit |
| SC21 | Fuse 21 on fuse holder |
| SC22 | Fuse 22 on fuse holder |
| SC23 | Fuse 23 on fuse holder |
| SC24 | Fuse 24 on fuse holder |
| SC25 | Fuse 25 on fuse holder |
| SC27 | Fuse 27 on fuse holder |
| SC29 | Fuse 29 on fuse holder |
| SC30 | Fuse 30 on fuse holder |
| T10i | 10-pin connector, green, front right footwell |
| T10n | 10-pin connector, black, seat on front right |
| T12cb | 12-pin connector, on Climatronic control unit only |
| T16cb | 16-pin connector, on Climatronic operating and display unit |
| B301 | Positive connection -5- (30), in main wiring harness |
| B324 | Positive connection -10- (30a), in main wiring harness |
| B325 | Positive connection -11- (30a), in main wiring harness |
| B331 | Positive connection -17- (30a), in main wiring harness |
| B332 | Positive connection -18- (30a), in main wiring harness |
| * | with automatic gearbox only |
| ** | from May 2003 |
| J104 | ABS control unit with EDL |
| J387 | Front passenger door control unit |
| J389 | Rear right door control unit |
| J519 | Onboard supply control unit |
| J605 | Rear lid control unit |
| J646 | Transfer box control unit |
| R | Radio |
| R12 | Amplifier |
| R78 | TV tuner |
| SC10 | Fuse 10 on fuse holder |
| SC11 | Fuse 11 on fuse holder |
| SC12 | Fuse 12 on fuse holder |
| SC31 | Fuse 31 on fuse holder |
| SC32 | Fuse 32 on fuse holder |
| SC34 | Fuse 34 on fuse holder |
| SC35 | Fuse 35 on fuse holder |
| SC56 | Fuse 56 on fuse holder |
| SC57 | Fuse 57 on fuse holder |
| T4at | 4-pin connector, coupling point right A-pillar |
| T5e | 5-pin connector, coupling point right A-pillar |
| T5i | 5-pin connector, coupling point right B-pillar |
| T6d | 6-pin connector, on onboard supply control unit |
| T23 | 23-pin connector, on rear lid control unit |
| T47a | 47-pin connector, on transfer box control unit |
| T47b | 47-pin connector, on ABS control unit with EDL |
| B301 | Positive connection -5- (30), in main wiring harness |
| B331 | Positive connection -17- (30a), in main wiring harness |
| B334 | Positive connection -20- (30a), in main wiring harness |
| V39 | Positive connection 2 (30), in radio - amplifier wiring harness |
| A | Battery |
| B | Starter |
| C | Alternator |
| E74 | Battery master/isolator switch |
| J234 | Airbag control unit |
| J403 | Adaptive suspension compressor relay |
| J519 | Onboard supply control unit |
| J655 | Battery cut-off relay |
| SD1 | Fuse 1 on fuse holder D |
| SD2 | Fuse 2 on fuse holder D |
| SD3 | Fuse 3 on fuse holder D |
| SD5 | Fuse 5 on fuse holder D |
| SD9 | Fuse 9 on fuse holder D |
| SD11 | Fuse 11 on fuse holder D |
| SD13 | Fuse 13 on fuse holder D |
| T4r | 4-pin connector, on separation element |
| T16p | 16-pin connector, on onboard supply control unit |
| T26a | 26-pin connector, on onboard supply control unit |
| TV2 | Terminal 30 wiring junction |
| TV22 | Terminal 30 wiring junction 2 |
| TV28 | Terminal 30 wiring junction 3 |
| 34 | Earth point, under driver seat |
| B298 | Positive connection 2 (30), in main wiring harness |
| B301 | Positive connection 5 (30), in main wiring harness |
| * | for models with engine code AYH only |
| J162 | Heater control unit |
| J386 | Driver door control unit |
| J388 | Rear left door control unit |
| J518 | Entry and start authorisation control unit |
| J519 | Onboard supply control unit |
| J708 | Residual heat relay |
| SB1 | Fuse 1 on fuse holder |
| SB2 | Fuse 2 on fuse holder |
| SB3 | Fuse 3 on fuse holder |
| SB4 | Fuse 4 on fuse holder |
| SB5 | Fuse 5 on fuse holder |
| SB6 | Fuse 6 on fuse holder |
| SB7 | Fuse 7 on fuse holder |
| SB8 | Fuse 8 on fuse holder |
| SB9 | Fuse 9 on fuse holder |
| SB10 | Fuse 10 on fuse holder |
| SB11 | Fuse 11 on fuse holder |
| SB12 | Fuse 12 on fuse holder |
| T6g | 6-pin connector |
| T6r | 6-pin connector |
| T16b | 16-pin connector, self-diagnosis connection |
| T81 | 81-pin connector |
| U1 | Cigarette lighter |
| U18 | 12 V socket 2 |
| U19 | 12 V socket 3 |
| U20 | 12 V socket 4 |
| V | Windscreen wiper motor |
| B298 | Positive connection -2- (30), in main wiring harness |
| B321 | Positive connection -7- (30a), in main wiring harness |
| B322 | Positive connection -8- (30a), in main wiring harness |
| B326 | Positive connection -12- (30a), in main wiring harness |
| B327 | Positive connection -13- (30a), in main wiring harness |
| J39 | Headlight washer system relay |
| J386 | Driver door control unit |
| J502 | Tyre pressure monitor control unit |
| J518 | Entry and start authorisation control unit |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| J605 | Rear lid control unit |
| J647 | Axle differential lock control unit |
| SB14 | Fuse 14 on fuse holder |
| SB15 | Fuse 15 on fuse holder |
| SB16 | Fuse 16 on fuse holder |
| SB17 | Fuse 17 on fuse holder |
| SB18 | Fuse 18 on fuse holder |
| SB19 | Fuse 19 on fuse holder |
| SB22 | Fuse 22 on fuse holder |
| SB23 | Fuse 23 on fuse holder |
| SB24 | Fuse 24 on fuse holder |
| SB25 | Fuse 25 on fuse holder |
| SB26 | Fuse 26 on fuse holder |
| T4b | 4-pin connector |
| T4y | 4-pin connector |
| T6a | 6-pin connector |
| T6d | 6-pin connector |
| T6u | 6-pin connector |
| T23 | 23-pin connector, on rear lid control unit |
| T37c | 37-pin connector, on tyre pressure monitor control unit |
| T47c | 47-pin connector, on axle differential lock control unit |
| B278 | Positive connection -2- (15a), in main wiring harness |
| B298 | Positive connection -2- (30), in main wiring harness |
| * | from May 2003 |
| F | Brake light switch |
| J9 | Heated rear window relay |
| J32 | Air conditioning system relay |
| J285 | Control unit with display in dash panel insert |
| J518 | Entry and start authorisation control unit |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| J712 | Heated seat relay |
| SB33 | Fuse 33 on fuse holder |
| SB34 | Fuse 34 on fuse holder |
| SB35 | Fuse 35 on fuse holder |
| SB36 | Fuse 36 on fuse holder |
| SB38 | Fuse 38 on fuse holder |
| SB39 | Fuse 39 on fuse holder |
| SB40 | Fuse 40 on fuse holder |
| SB41 | Fuse 41 on fuse holder |
| T6d | 6-pin connector |
| T16a | 16-pin connector |
| T16p | 16-pin connector |
| T32a | 32-pin connector, blue, on dash panel insert |
| T81 | 81-pin connector, on entry and start authorisation control unit |
| B281 | Positive connection -5- (15a), in main wiring harness |
| B298 | Positive connection -2- (30), in main wiring harness |
| B328 | Positive connection -14- (30a), in main wiring harness |
| B330 | Positive connection -16- (30a), in main wiring harness |
| * | only models with manual air conditioning system |
| J136 | Seat and steering column adjustment control unit with memory |
| J245 | Sliding sunroof adjustment control unit |
| SB42 | Fuse 42 on fuse holder |
| SB44 | Fuse 44 on fuse holder |
| SB45 | Fuse 45 on fuse holder |
| SB56 | Fuse 56 on fuse holder |
| SB57 | Fuse 57 on fuse holder |
| V305 | Front blower Bitron regulation motor |
| V306 | Rear blower Bitron regulation motor |
| B298 | Positive connection -2- (30), in main wiring harness |
| B318 | Positive connection -4- (30a), in main wiring harness |
| B323 | Positive connection -9- (30a), in main wiring harness |
| B329 | Positive connection -15- (30a), in main wiring harness |
| E1 | Light switch |
| E102 | Headlight range control regulator |
| G238 | Air quality sensor |
| J236 | Servotronic control unit |
| J329 | Terminal 15 voltage supply relay |
| J502 | Tyre pressure monitor control unit |
| J518 | Entry and start authorisation control unit |
| J647 | Axle differential lock control unit |
| SB47 | Fuse 47 on fuse holder |
| SB49 | Fuse 49 on fuse holder |
| SB50 | Fuse 50 on fuse holder |
| SB51 | Fuse 51 on fuse holder |
| SB52 | Fuse 52 on fuse holder |
| SB53 | Fuse 53 on fuse holder |
| SB54 | Fuse 54 on fuse holder |
| T10f | 10-pin connector, red, electronics box engine compartment |
| T16b | 16-pin connector, self-diagnosis connection |
| T32c | 32-pin connector |
| T47c | 47-pin connector, on axle differential lock control unit |
| V12 | Rear window wiper motor |
| B165 | Positive connection 2 (15), in interior wiring harness |
| B273 | Positive connection (15), in main wiring harness |
| B277 | Positive connection -1- (15a), in main wiring harness |
| B284 | Positive connection -8- (15a), in main wiring harness |
| B285 | Positive connection -9- (15a), in main wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
| * | only with engine code AZZ |
| F4 | Reversing light switch |
| J104 | ABS control unit with EDL |
| J345 | Trailer detector control unit |
| J646 | Transfer box control unit |
| SC38 | Fuse 38 on fuse holder |
| SC40 | Fuse 40 on fuse holder |
| SC41 | Fuse 41 on fuse holder |
| SC43 | Fuse 43 on fuse holder |
| SC44 | Fuse 44 on fuse holder |
| T5h | 5-pin connector |
| T6aj | 6-pin connector, on trailer detector control unit |
| T47a | 47-pin connector, on transfer box control unit |
| T47b | 47-pin connector, on ABS control unit with EDL |
| B165 | Positive connection 2 (15), in interior wiring harness |
| B287 | Positive connection -11- (15a), in main wiring harness |
| B288 | Positive connection -12- (15a), in main wiring harness |
| * | only models with manual gearbox |
| J197 | Adaptive suspension control unit |
| J217 | Automatic gearbox control unit |
| J446 | Parking aid control unit |
| J526 | Telephone and telematics control unit |
| SC48 | Fuse 48 on fuse holder |
| SC49 | Fuse 49 on fuse holder |
| SC50 | Fuse 50 on fuse holder |
| SC51 | Fuse 51 on fuse holder |
| SC52 | Fuse 52 on fuse holder |
| T16m | 16-pin connector, on parking aid control unit |
| T18a | 18-pin connector, on telephone / telematics control unit |
| T81 | 81-pin connector, on adaptive suspension control unit |
| B165 | Positive connection 2 (15), in interior wiring harness |
| B290 | Positive connection -14- (15a), in main wiring harness |
| B291 | Positive connection -15- (15a), in main wiring harness |
| * | is dropped from May 2003 |
| ** | only models with automatic gearbox |
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