PDU DATALOGGER Acronyms

ACCREQ: A/C compressor clutch request 

ACHPS: A/C refrigerant high pressure switch 

ACLPS: A/C refrigerant low pressure switch 

ADV: Ignition timing advance (Cyl 1, A bank) 

BARO: Barometric pressure sensor 

BAT1+: Battery B+ supply to ECM 

CLV: Calculated load value 

CRANKREQ: Crank request (from BPM) 

CRUISEA: Cruise control accel/decel switch 

CRUISEB: Cruise resume/cancel switch 

CRUISEC: Cruise cancel switch 

CRUISED: Cruise control set/inch/decel switch 

CRUISEO: Cruise control ON/OFF switch 

CRUISER: Cruise control resume switch 

CRUISES: Cruise control set/inch/accel switch 

CRUISEC1: Cruise control cancel switch 

DTC1: Number of DTCs logged this trip 

DTCS: Number of permanent DTCs logged 

ECT: Engine coolant temperature 

EGR: Exhaust gas recirculation 

EVAP: Evaporative emission system monitor 

FANF: Cooling fan fast 

FANFRLY: Cooling fan relay fast 

FANS: Cooling fan slow 

FANSRLY: Cooling fan relay slow 

FBRAKE2: Brake switch 

FP: Fuel pump 

FPRLY: Fuel pump relay 

GUARD1: Mechanical guard sensor 

O2SB1D: Oxygen sensor (downstream) A bank 

O2SB2D: Oxygen sensor (downstream) B bank 

HO2SB1U: Heated oxygen sensor (upstream) A bank 

HO2SB2U: Heated oxygen sensor (upstream) B bank 

HTDSC: Heated windshield request 

IAT: Intake air temperature 

KS1A: Knock sensor 1 A bank 

KS1B: Knock sensor 1 B bank 

KS4A: Knock sensor 4 A bank 

KS4B: Knock sensor 4 B bank 

KSFA: Knock sensor fail A bank 

KSFB: Knock sensor fail B bank 

LTFT1: Long term fuel trim A bank 

LTFT2: Long term fuel trim B bank 

MAF: Mass air flow 

MAFGND1: MAFS ground 

MAFS1: Mass air flow sensor 

MPROBE: Measurement probe (RED) 

PKBRAKE: Park brake switch 

PNPS: Park/neutral position switch (rotary switch) 

PPS1: Pedal position sensor track A 

PPS2: Pedal position sensor track B 

RPM: Engine speed 

SPS: Sensor power supply monitor 

STFT1: Short term fuel trim A bank 

STFT2: Short term fuel trim B bank 

STFTB1D: Short term fuel trim A bank downstream 

STFTB1U: Short term fuel trim A bank upstream 

STFTB2D: Short term fuel trim B bank downstream 

STFTB2U: Short term fuel trim B bank upstream 

TPS: Throttle position sensor 

TPS1: Throttle position sensor track 1 

TPS2: Throttle position sensor track 2 

TTP: Target throttle position 

VSS: Vehicle speed 

VSVRM: Vacuum switching valve release monitor 

VSVAM: Vacuum switching valve atmosphere monitor 

VSVVM: Vacuum switching valve vacuum monitor 

VVTBM: Variable valve timing (B bank) monitor