Workshop Manuals Factory service & repair Aston Martin
Aston Martin DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning (1994-1998)04 · Air conditioning
04 · Heating & A/C

The Air Conditioning System Diagnostics (page 2 of 2)

Make
Aston Martin
Model
DB7 Factory Workshop Manual Volume 2: Electrics, Body and Air Conditioning
Year
1994–1998
Section
Air conditioning diagnostics
Air conditioningThe Air Conditioning System Diagnostics · page 2 of 2

The following signals can be monitored using the PDU. The abbreviated name of the signal is shown on the PDU display.

Display Name Full Signal Name
AMBTTEMPAmbient temperature sensor
ARECIPAuto-Recirculation input
ARECOPAuto-Recirculation output
AUX+Auxiliary battery positive
CLURELClutch relay drive output
CVSOLCentre vent solenoid
DEFSOLDefrost solenoid
DIFTemperature differential
EVSENEvaporator sensor
FANDEFFanspeed defrost
FANHIGFanspeed high
FANLOWFanspeed low
FANMEDFanspeed medium
FIVEVFive volt supply voltage
FORERLLower servo forward drive
FORERUUpper servo forward drive
GND10Ground voltage
GND2Ground voltage
GND38Ground voltage
GND45Ground voltage
GND6Ground voltage
HSRELHigh speed relay drive
ICSENIn-Car sensor
LBLOFBLeft blower feedback voltage
LBLOWOPLeft blower output voltage
LSERFBLower servo feedback potentiometer
MPROBEMeasurement probe
POWIN+Switched power input
POWOP+Power output
RBLOFBRight blower feedback voltage
RBLOWOPRight blower output voltage
REFReference signal
REVSLRLower servo reverse drive
REVSRUUpper servo reverse drive
TEMPDEMTemperature demand
USERFBUpper servo feedback potentiometer
WATSWWater switch
WATVALWater valve

Parts & tools for this job For 1994 Aston Martin DB7

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