Porsche Cayman 987 facelift (2009-2012) computer data lines system Wiring diagrams

2 8 CAN COMFORT HIGH CAN COMFORT LOW 37 38 6 CAN COMFORT HIGH CAN COMFORT LOW SPOILER SW MODULE 38 41 SPOILER MODE FUNC LIGHT SPORT MODE FUNC LIGHT BLK WIRE BLU/GRN WIRE BRN WIRE BRN/GRN WIRE BUTTON MODULE COMPUTER DATA LINES SYSTEM DRIVE SPOILER (REAR FLAP) FUSE GRN WIRE GROUND GRY/RED WIRE HOT AT ALL TIMES FUSE HOLDER A ILLUMINATION REAR CONTROL UNIT (UNDER DRIVER'S SEAT) RED WIRE SPOILER MODE FUNC LIGHT SPOILER SW MODULE SPORT MODE FUNC LIGHT VEHICLE ELECTRICAL SYSTEM CONTROL UNIT WHT WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

3 2 4 1 COMPUTER CAN HIGH CAN LOW TERMINAL 15 GND DATA LINES SYSTEM 3 4 5 TERMINAL 15 5 4 BRAKE PAID WEAR - BRAKE PAID WEAR + ACTIVE SPEED SENSOR BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRAKE FLUID LEVEL BRAKE FLUID LEVEL CONTROL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE PEDAL SWITCH BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE BUTTON MODULE CAN HI DRIVE COMPUTER DATA LINES SYSTEM ENG RLY ENG RLY ACT ENGINE RELAY FRONT END CONTROL UNIT (RIGHT SIDE OF FRONT LUGGAGE COMPT) FUSE GP PSM (AT LEFT FRONT SIDE OF LUGGAGE COMPT) GP PSM (AT LEFT FRONTSIDE OF LUGGAGE COMPT) GRN/RED WIRE HOT AT ALL TIMES HOT AT ALL TIMES CURRENT DISTRIBUTOR (BEHIND RIGHT SIDE OF DASH) FUSE HOT W/ TERMINAL 15 RELAY ENERGIZED FUSE HOLDER C INSTRUMENT CLUSTER LF DP LR DS SW + RR DS SW + PSM LF DS LR DP RR DP LR EOS MTR CTRL U BATTERY NCA WIRE ORG/ WIRE ORG/BLU WIRE PARKING BRAKE CONTACT PASSIVE BUTTON PRESSURE SENSOR PRK BRK CONTACT CAN DRIVE LO PSM PASSIVE BULB IN BUTTON RATE OFF TURN SENSOR RATE OFTURN SENSOR RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RETURN PUMP MOTOR RF DP RF DP DIAG KLINE SPEED SENSOR LEFT FRONT BRAKE PAD WEAR/SPEED SENSOR (AT WHEEL ASSEMBLY) SPEED SENSOR LEFT REAR BRAKE PAD WEAR/SPEED SENSOR (AT WHEEL ASSEMBLY) SPEED SENSOR RIGHT FRONT BRAKE PAD WEAR/SPEED SENSOR (AT WHEEL ASSEMBLY) SPEED SENSOR RIGHT REAR BRAKE PAD WEAR/SPEED SENSOR (AT WHEEL ASSEMBLY) VALVE RELAY VALVE RLY ACT WEAR SENSOR WHEEL SPEED WHEEL WHT WIRE WHT/BLK WIRE WHT/BRN WIRE YEL WIRE YEL/WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GROUND 1 2 3 SUPPLY GROUND SERIAL DATA 1 2 3 TERM 30 TERM 31 DATA 12 8 2 ALARM HORN CAN COMFORT LOW CAN COMFORT HIGH ALARM HORN (LEFT SIDE OF FRONT LUGGAGE COMPT, LEFT OF BATTERY) ALARM SIREN ALARM SIREN (LEFT SIDE OF FRONT LUGGAGE COMPT, LEFT OF BATTERY) ANTENNA (NAVIGATION) ANTENNA (RADIO) ANTENNA ALARM ANTENNA ALARM SHIELD BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CAN DRIVE HIGH CAN DRIVE LOW CAN COMFORT HIGH CAN COMFORT LOW CLS ALARM OUT COMPUTER DATA LINES SYSTEM ELECTRONIC IGNITION LOCK EMERGENCY POWER SUPPLY RELAY GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES CURRENT DISTRIBUTOR (BEHIND RIGHT SIDE OF DASH) FUSE HOT AT ALL TIMES FUSE HOT AT ALL TIMES FUSE HOLDER B FUSE INTERIOR SENSOR MICRO SW LOCKING NCA WIRE ORG/ WIRE PAS (DRIVER'S RECOGNITION) CONTROL UNIT (UNDER DASH, LEFT OF STEERING COLUMN) POWER DISTRIBUTION SYSTEM REAR CONTROL UNIT (UNDER LEFT SEAT) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM POWER DISTRIBUTION SYSTEM AIR CONDITIONING SYSTEM STEERING COL + STEERING COL - TERM 31 2 EXTERNAL IND TERM 50 ACT HIGH STEERING WHEEL LOCK TERM 31 1 TERM 15 START 24 25 26 27 28 29 30 31 32 33 34 35 TERM 50 DIAG TERM 15 DIAG TERM 75 ACT LOW TERM 30 TILT SENSOR TILT SENSOR (LEFT SIDE OF FRONT LUGGAGE COMPT) TOP LOCKING MICRO SWITCH (CONVERTIBLE) TRANSMISSIONS SYSTEM EXTERIOR LIGHTS SYSTEM VOLTAGE CONTROL IGN LOCK TERM S ACT LOW YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

AIR CONDITIONING FAN BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL FLAP RECIR- CULATION DRIVE MOTOR CIRCULATING AIR/ OUTSIDE AIR FLAP DRIVE MOTOR CLIMATRONIC CONTROL UNIT COMPUTER DATA LINES SYSTEM FAN BACKREST FAN SEAT FINAL STAGE FAN FOOTWELL/DEFROST FLAP DRIVE MOTOR GRN/BLK WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ TERMINAL 15 RELAY ENERGIZED FUSE HOLDER C FUSE NCA WIRE NTC- ORG/BLK WIRE ORG/BRN WIRE OUTLET TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF FRONT BUMPER) PMU PWM RED WIRE RED/BLK WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR RIGHT FAN SUN SENSOR (UNDER TOP CENTER OF DASH) TEMP TEMPERATURE FLAP DRIVE MOTOR TERM 15 VIO/WHT WIRE VIO/YEL WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE YEL/WHT WIRE

1 2 GND BATT 1 2 LEFT FAN + LEFT FAN - 1 2 TERM 15 ACTUATION INPUT 17 22 SENS GND NTC WAGGER 2.9L 3.4L 25 36 37 43 54 41 ENG COMPT BLWR RLY CAN HIGH CAN LOW 40 42 ENG COMPT TEMP SEN SENS GND ACTUATION TERM 15 FAN FINAL STAGE AIR CONDITIONING COMPRESSOR (LEFT FRONT OF ENGINE) BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE CAN HIGH COMFORT CAN LOW COMFORT COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (NTC) (ON ENGINE) COOLING WATER FAN CONTROL UNIT CU A/C CURRENT DISTRIBUTOR (BEHIND RIGHT DME CONTROL UNIT ENGINE COMPARTMENT HIGH FAN RELAY ENGINE COMPARTMENT PURGE FAN (CLEANER FAN) (LEFT FRONT SIDE OF ENGINE COMPT) ENGINE COMPARTMENT TEMPERATURE SENSOR ENGINE CONTROLS, TRANSMISSION SYSTEMS FRONT END CONTROL UNIT (RIGHT SIDE OF FRONT LUGGAGE COMPT) FUSE FUSE HOLDER B FUSE HOLDER D HEATER RELAY HOT AT ALL TIMES HOT AT ALL TIMES FUSE HOLDER F FUSE HOT W/ DME RELAY ENERGIZED LEFT COOLING WATER FAN MIDI FUSE NCA WIRE ORG/ WIRE PAS (DRIVER RECOGNITION) CONTROL UNIT (UNDER DASH, LEFT OF STEERING COLUMN) POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RELAY SUPPORT 1 (UNDER LEFT SIDE OF DASH, IN FOOTWELL) RELAY SUPPORT 2 (LEFT SIDE OF REAR LUGGAGE COMPT) RIGHT COOLING WATER FAN SIDE OF DASH) TANK LEAKAGE DIAGNOSTIC MODULE TCRMX TERM 87 YEL WIRE YEL/BLU WIRE YEL/RED WIRE YEL/WHT WIRE

1 2 GND BATT 1 2 LEFT FAN + LEFT FAN - 1 2 TERM 15 ACTUATION INPUT 17 22 SENS GND NTC COOLANT PUMP 3.4L 2.9L 36 37 43 54 CAN HIGH CAN LOW 40 42 TEMP SEN SENS GND ACTUATION FAN BLK WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE CAN HIGH COMFORT CAN LOW COMFORT COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE SENSOR (NTC) (ON ENGINE) COOLING WATER FAN CONTROL UNIT DME CONTROL UNIT ENGINE COMPARTMENT TEMPERATURE SENSOR FRONT END CONTROL UNIT (RIGHT SIDE OF FRONT LUGGAGE COMPT) HOT AT ALL TIMES LEFT COOLING WATER FAN MIDI FUSE NCA WIRE POWER DISTRIBUTION SYSTEM RED WIRE RIGHT COOLING WATER FAN TERM 15 FINAL STAGE YEL WIRE YEL/BLU WIRE YEL/WHT WIRE

1 2 3 4 5 6 TERM 31 CAN DISPLAY LOW 10 11 CAN HIGH DRIVE CAN LOW DRIVE 25 8 10 24 86 38 62 14 THROTTLE VLV GND THROTTLE VLV SIG 3.4L 2.9L 7 8 9 12 13 14 1 38 39 53 51 52 40 29 PDL VALVE SENS 1 GND PDL VALVE SENS 1 SIG 7 9 6 30 THROTTLE VLV MTR (+) THROTTLE VLV MTR (-) BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BRAKE PEDAL SWITCH BRIDGE PLUG 1 (RELAY SUPPORT 1) BRN WIRE BRN/YEL WIRE BS+ CAN COMFORT HIGH CAN COMFORT LOW CAN DRIVE HIGH CAN DRIVE LOW CLUTCH INTERLOCK SWITCH (CLUTCH PEDAL) COMPUTER DATA LINES SYSTEM DME CONTROL UNIT FUSE HOLDER B FUSE HOLDER C GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES FUSE PAS (DRIVER'S RECOGNITION) CONTROL UNIT (UNDER DASH, LEFT OF STEERING COLUMN) PDL VALVE SENS 2 GND PDL VALVE SENS 2 SIG REAR CONTROL UNIT (UNDER LEFT SEAT) RED/BLK WIRE RED/BLU WIRE RED/VIO WIRE RELEASE SPORT CHRONO STEERING COLUMN COMBINED MODULE STOP LIGHT SW THROTTLE VALVE (MIDDLE OF INTAKE MANIFOLD) THROTTLE VLV SIG VIO WIRE WAKE UP CAN DISPLAY HIGH TERM 30 YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

AIR CONDITIONING FAN BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CENTRAL FLAP RECIR- CULATION DRIVE MOTOR CLIMATRONIC CONTROL UNIT COMPUTER DATA LINES SYSTEM COOL FOOTWELL MIDDLE LEVEL OPEN (FRESH AIR) DEFROST FLAP DRIVE MOTOR FINAL STAGE FAN FRESH AIR CIRCULATING DRIVE MOTOR GRN/BLK WIRE GRY/GRN WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ TERM 15 RELAY ENERGIZED FUSE HOLDER C FUSE NTC EVAPORATOR NTC WATER PRESS SENS ORG/BLK WIRE ORG/BRN WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE REFRIGERANT PRESSURE SENSOR SUN SENSOR (UNDER TOP CENTER OF DASH) TEMPERATURE FLAP DRIVE MOTOR TERM 15 HOT DEFROST FOOTWELL/DEFROST CLOSE CIRC AIR A/C COMPRESSOR TERM 31 TERM 30 WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/RED WIRE YEL/WHT WIRE

1 2 GND BATT 1 2 LEFT FAN + LEFT FAN - 1 2 TERM 15 ACTUATION INPUT 17 22 SENS GND NTC WAGGER 2.9L 3.4L 25 36 37 43 54 41 ENG COMPT BLWR RLY CAN HIGH CAN LOW 40 42 ENG COMPT TEMP SEN SENS GND ACTUATION TERM 15 FAN FINAL STAGE AIR CONDITIONING COMPRESSOR (LEFT FRONT OF ENGINE) BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE BRN/PNK WIRE BRN/WHT WIRE CAN HIGH COMFORT CAN LOW COMFORT COMPUTER DATA LINES SYSTEM COOLING WATER FAN CONTROL UNIT COOLING WATER TEMPERATURE SENSOR (NTC) (ON ENGINE) CU A/C CURRENT DISTRIBUTOR (BEHIND RIGHT DME CONTROL UNIT ENGINE COMPARTMENT HIGH FAN RELAY ENGINE COMPARTMENT PURGE FAN (CLEANER FAN) (LEFT FRONT SIDE OF ENGINE COMPT) ENGINE COMPARTMENT TEMPERATURE SENSOR ENGINE CONTROLS, TRANSMISSION SYSTEMS FRONT END CONTROL UNIT (RIGHT SIDE OF FRONT LUGGAGE COMPT) FUSE FUSE HOLDER B FUSE HOLDER D HEATER RELAY HOT AT ALL TIMES HOT AT ALL TIMES FUSE HOLDER F FUSE HOT W/ DME RELAY ENERGIZED LEFT COOLING WATER FAN MIDI FUSE NCA WIRE ORG/ WIRE PAS (DRIVER RECOGNITION) CONTROL UNIT (UNDER DASH, LEFT OF STEERING COLUMN) POWER DISTRIBUTION SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RELAY SUPPORT 1 (UNDER LEFT SIDE OF DASH, IN FOOTWELL) RELAY SUPPORT 2 (LEFT SIDE OF REAR LUGGAGE COMPT) RIGHT COOLING WATER FAN SIDE OF DASH) TANK LEAKAGE DIAGNOSTIC MODULE TCRMX TERM 87 YEL WIRE YEL/BLU WIRE YEL/RED WIRE YEL/WHT WIRE

ACTIVE BODYWORKS SYSTEM AUTOMATIC LIGHT SWITCH BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/BLU WIRE BRN/ORG WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COUPE DASH) DEFOGGER SYSTEM INTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM FRONT COVER OPENER BUTTON REAR COVER OPENER BUTTON FUNCTION LIGHT SPORT 2 FUSE GRN WIRE GRN/ORG WIRE GROUND CONNECTION 1 GRY WIRE GRY/BLU WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HOME LINK LED HOMELINK BUTTON 1 HOMELINK BUTTON 1 FOG LIGHT SWITCH HOMELINK BUTTON 2 HOMELINK BUTTON 3 HOMELINK KEYPAD HOMELINK TRANSMITTER (RIGHT FRONT OF FRONT TRUNK) HOT AT ALL TIMES HOT AT ALL TIMES CURRENT DISTRIBUTOR FUSE (BEHIND RIGHT SIDE OF DASH) HOT AT ALL TIMES FUSE HOLDER B FUSE HOT AT ALL TIMES MIDI FUSE (EXHAUST) INTERIOR LIGHTS SYSTEM ACTIVE BODYWORKS SYSTEM LED LEFT SEAT HEATER LEFT SEAT HEATER + LIN POWER DISTRIBUTION SYSTEM WIPER/WASHER SYSTEM RAIN SENSOR + RAIN SENSOR SIGNAL RAIN SENSOR - REAR SPOILER FUNC LIGHT REAR WINDOW DEFOGGER RLY LIGHT ORIENTATION TERMINAL HEADLIGHT CLEANER PUMP RLY RED WIRE RED/BLK WIRE RED/BRN WIRE RED/GRN WIRE RED/WHT WIRE SEATS SYSTEM SPORT MODE FUNC LIGHT TERM 15 TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM COMPUTER DATA LINES SYSTEM VEHICLE ELECTRICAL SYSTEM CONTROL UNIT WASHING FLUID PUMP WASHING FLUID PUMP + WHT WIRE WHT/RED WIRE WINDSHIELD WIPER MTR PARKING SW WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE YEL/WHT WIRE