PCM ‘B’ Connector

This section covers BA, BF and FG Mk1 PCM and wiring
PIN NOBAWIRE COLOURBF WIRE COLOURFG WIRE COLOUR
B1EARTHBLACKEARTHBLACKPOWER GROUNDBLACK
B2AC COMPRESSOR CLUTCH RELAYGREYAC COMPRESSOR CLUTCH RELAYGREYAIR CONDITIONING RELAY (ACR)BLACK / WHITE STRIPE
B3INTAKE MANIFOLD RUNNER VAC SWITCH (I6)LIGHT GREENINTAKE MANIFOLD RUNNER VAC SWITCHLIGHT GREENINTAKE MANIFOLD RUNNER VAC SWITCHLIGHT GREEN
B4START ENABLE (STRT-EN)LIGHT GREENSTART ENABLE (STRT-EN)LIGHT GREENSTART ENABLE (STRT-EN)LIGHT GREEN
B5CLUTCH SWITCH
ground when clutch out
BLUE/YELLOWCLUTCH SWITCH CES
ground when clutch out
BLUE/YELLOWCLUTCH SWITCH CES
ground when clutch out
BLUE / YELLOW STRIPE
B6RESTRAINT TAS SIGNALPINK/BLACKRESTRAINT TAS SIGNALPINK/BLACK
B7VSS INPUTGREY/BLACKVSS INPUTGREY/BLACK
B8HEATED OXYGEN SENSOR (HO2S)GREYALT WARN LIGHT OUTPUTGREY/BLACKVREF (ACCELERATOR)BROWN / WHITE STRIPE
B9IGNITION SWITCHWHITE/REDIGNITION SWITCHWHITE/REDIGNITION SWITCH (IGNSNS)WHITE / RED STRIPE
B10POWER GROUNDBLACKPOWER GROUNDBLACKCASE GROUND (CASEGND)BLACK
B11POWER GROUNDBLACKPOWER GROUNDBLACKPOWER GROUNDBLACK
B12POWER GROUNDBLACKPOWER GROUNDBLACKPOWER GROUNDBLACK
B13CANBUS HIGHBROWN/YELLOWCANBUS HIGHBROWN/YELLOWCAN-HIGH (CANH)BROWN
B14CANBUS LOWPINK/BLUECANBUS LOWPINK/BLUECAN-LOW (CANL)PINK
B15AC REFRIGERANT PRESSURE SENSORBROWNAC REFRIGERANT PRESSURE SENSORBROWNAIR CONDITIONING PRESSURE TRANSDUCER (ACPT)BROWN
B16CRUISE CONTROL INPUTSKY BLUECRUISE CONTROL INPUTSKY BLUESTEERING COLUMN CLOCK SPRING (SCRS-A)SKY BLUE
B17ACCELERATOR PEDAL POSITION (APPS1)YELLOW/WHITEACCELERATOR PEDAL POSITION (APP) SENSORYELLOW/WHITEACCELERATOR PEDAL POSITION (APPS1)YELLOW / WHITE STRIPE
B18ACCELERATOR PEDAL POSITION (APPS2)WHITEACCELERATOR PEDAL POSITION (APP) SENSORWHITEACCELERATOR PEDAL POSITION (APPS2)WHITE
B19ACCELERATOR PEDAL POSITION (APPS3)WHITE/REDACCELERATOR PEDAL POSITION (APPS3)WHITE/REDTURBO WASTE GATE SOLENOID (TURBO ONLY)WHITE / RED STRIPE
B20ACCELERATOR PEDAL POSITION (APP VREF)YELLOW/BLUEACCELERATOR PEDAL POSITION (APP VREF)YELLOW/BLUEACCELERATOR PEDAL POSITION SENSOR RETURNGREY
B21ACCELERATOR PEDAL POSITION (APP GROUND)GREYACCELERATOR PEDAL POSITION (APP GROUND)GREYACCELERATOR PEDAL POSITION SENSOR VREFYELLOW / BLUE STRIPE
B22CANISTER PURGEGREYCANISTER PURGEGREYCANISTER PURGEGREY
B23POWER GROUNDBLACKPOWER GROUNDBLACKPOWER GROUNDBLACK
B24ENGINE COOLING FAN 1 (EDF 1)BLUEENGINE COOLING FAN 1 (EDF 1)BLUEENGINE COOLING FAN 1 (EDF 1)BLUE
B25BRAKE ON-OFF SWITCH (BOO)GREEN/REDBRAKE ON-OFF SWITCH (BOO)GREEN/REDBRAKE ON-OFF SWITCH (BOO)GREEN / RED STRIPE
B26HEATED OXYGEN SENSOR 2 RED / BLACK STRIPEHEATED OXYGEN SENSOR 2 RED / BLACK STRIPE
B27FUEL PUMP (FP) RELAYBLUE/YELLOWFUEL PUMP (FP) RELAYBLUE/YELLOWFUEL PUMP RELAY (FP)BLUE / YELLOW STRIPE
B28ACCELERATOR PEDAL POSITION (APP) VREF 2BROWNALT COMYELLOW/GREENALTERNATOR COMMUNICATIONS (ALTCOM)GREEN / YELLOW STRIPE
B29ACCELERATOR PEDAL POSITION (APP) SENSORBLACKALT MONBLUE/YELLOWALTERNATOR MONITOR (ALTMON)BLUE / YELLOW STRIPE
B30REVERSE LIGHT INPUTRED / BLACK STRIPEREVERSE LIGHT INPUTRED/BLACKREVERSE LIGHT INPUTRED / BLACK STRIPE
B31POWER STEERING PRESSURE SWITCH (PSPS)YELLOW/WHITEPOWER STEERING PRESSURE SWITCH (PSPS)YELLOW/GREENPOWER STEERING PRESSURE SWITCH (PSPS)YELLOW / GREEN STRIPE
B32CRUISE CONTROL BRAKE PEDAL SWITCHLIGHT GREENCRUISE CONTROL BRAKE PEDAL SWITCHLIGHT GREENCRUISE CONTROL BRAKE PEDAL SWITCHLIGHT GREEN
B33SIGRTN (COMMON SENSOR GROUND)GREY/REDSIGRTN (COMMON SENSOR GROUND)GREY/REDSIGRTN (COMMON SENSOR GROUND)GREY / RED STRIPE
B34VEHICLE POWER (VPWR)REDVEHICLE POWER (VPWR)REDVEHICLE POWER (VPWR)RED
B35ENGINE FAN RELAY 2LIGHT GREENENGINE FAN RELAY 2LIGHT GREENENGINE FAN RELAY 2LIGHT GREEN
B36VEHICLE SPEED OUT (VSOUT)BLACK/WHITEVEHICLE SPEED OUT (VSOUT)BLACK/WHITEVEHICLE SPEED OUT (VSOUT)BLACK / WHITE STRIPE
B37POWER SUSTAIN (PWRSTN)BROWNPOWER SUSTAIN (PWRSTN)BROWNPOWER SUSTAIN (PWRSTN)BROWN
START SIGNAL INPUTRED / BLUE STRIPE
B39DATA LINK CONNECTOR FEPSREDDATA LINK CONNECTOR FEPSREDDATA LINK CONNECTOR FEPSRED
B40KEEP ALIVE POWER (KAPWR)BLACKKEEP ALIVE POWER (KAPWR)BLACKKEEP ALIVE POWER (KAPWR)BLACK
B41TRANSMISSION RANGE (TR) SWITCHYELLOW/BLACKTRANSMISSION RANGE (TR) SWITCHYELLOW/BLACKTRS/TCS - (Only used for column shift 5 speed auto / LPG vehicles for trans shifter position / inhibitor sw)YELLOW / BLACK STRIPE
B42REVERSE LOCK OUT SOLENOIDP-BREVERSE LOCKOUT (RLOCKOUT)PINK / BLACK STRIPE
B43SEQ SPORTS SHIFTSKY BLUESEQ SPORTS SHIFTSKY BLUETRANSMISSION RANGE SENSOR (TRS2)SKY BLUE
B44BOOST PRESSURE SENOR (BPS) TURBO ONLYLIGHT GREEN / BLACK STRIPE
B455V FOR VEH SPEED SENSBROWN/WHITE5V FOR VEH SPEED SENSBROWN/WHITEVREF (TIPTRONIC)BROWN / WHITE STRIPE
B46ENGINE CONTROL (EC) RELAYREDENGINE CONTROL (EC) RELAYREDVEHICLE POWER (VPWR)RED

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