Haldex EB+ Gen 2 - Reservoir Pressure Transducer Group; Suspension Pressure Transducer Group; Pressure Switch Group; ISO11992 (CAN) Electrical Signal Group

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DTC Displayed Possible Causes
Reservoir Pressure Transducer Group
RESR SC Reservoir pressure transducer short circuit
RESR OC Reservoir pressure transducer open circuit
Suspension Pressure Transducer Group
SUSP SC Suspension pressure transducer
short circuit
SUSP OC Suspension pressure transducer
open circuit
SUSP OUT OF RANGE Suspension pressure values outside
operating range
Pressure Switch Group
REV SWITCH SC Relay emergency valve pressure switch
short circuit
REV SWITCH OC Relay emergency valve pressure switch
open circuit
REV SWITCH
PNEUMATIC
Relay emergency valve pressure switch
pneumatic fault
REV SWITCH SIGNAL Relay emergency valve pressure switch
failed to activate
ISO11992 (CAN) Electrical Signal Group
PNEUMATIC
DEMAND LOSS
No corresponding pneumatic demand
pressure
TOWED CAN
DEMAND LOSS
CAN line (pin 6 and 7 on ISO7638) fault
TOWED CAN
CONTROL LOSS
CAN line (pin 6 and 7 on ISO7638) data
fault
Supply Voltage Group
PWR ISO7638 FAIL Power loss on pin 1 or 2 (ISO7638)
PWR LO VOLT Supply voltage at ECU less than 19v when
brake apply solenoid energised
PWR HI VOLT Supply voltage at the ECU greater than 32v
PWR UNSPEC Internal ECU fault
ECU Group
ECU EE ERR Internal ECU fault or ECU not programmed
ECU PARAM ERR Internal ECU fault or ECU not programmed
ECU EE UNSPEC Internal ECU fault or ECU not programmed
DTC Displayed Possible Causes
Auxiliary Components Group
AUX1 Auxiliary 1 system/wiring open or
short circuit
AUX2 Auxiliary 2 system/wiring open or
short circuit
AUX3 Auxiliary 3 system/wiring open or
short circuit
AUX4 Auxiliary 4 system/wiring open or
short circuit
AUX5 Auxiliary 5 system/wiring open or
short circuit
Lining Wear Group
BRAKE PADS Lining wear wiring open circuit
Lateral Accelerometer
LAT ACC OC Lateral accelerometer wiring open circuit
LAT ACC SC Lateral accelerometer wiring short circuit
LAT ACC SIGNAL Lateral accelerometer signal fault
Slave Valve Group
SLAVE VALVE SENSOR Pressure transducers open or short circuit
SLAVE VALVE
MODULATOR
Hold, Dump or Brake Apply solenoid open
or short circuit
SLAVE VALVE CABLE Link cable open or short circuit
SLAVE VALVE SLOW
REC
Slow recovery of one wheel slave valve
SLAVE SUSP LOW Suspension pressure values outside
operating range
Note: If a DTC is displayed and after following recommended
procedure, as detailed in the Service Manual, no fault is found,
the ECU should be replaced.
Diagnostic Trouble Codes (DTC)