Actron GM Code Scanner CP9001 - Manual (Page 95)

95
attach a tag to your defective
unit clearly indicating the
trouble code(s) reported by
the defective EHCU.
43, 44, 47, 48,
53, 54, & 68 all
at the same
time.
If all of these codes appear
simultaneously, carefully
check all power and ground
connections at the EHCU
(Electro-Hydraulic Control
Unit).
44
Right Front Pulse Width
Modulation Valve
Solenoid, short circuit.
Refer to the explanation
under trouble code 43.
45
Left Front Isolation Valve
Solenoid, open circuit.
Refer to the explanation
under trouble code 41.
46
Left Front Pulse Width
Modulation Valve
Solenoid, open circuit.
Refer to the explanation
under trouble code 41.
47
Left Front Isolation Valve
Solenoid, short circuit.
Refer to the explanation
under trouble code 43.
48
Left Front Pulse Width
Modulation Valve
Solenoid, short circuit.
Refer to the explanation
under trouble code 43.
51
Rear Isolation Valve
Solenoid, open circuit.
Refer to the explanation
under trouble code 41.
52
Rear Pulse Width
Modulation Valve
Solenoid, open circuit.
Refer to the explanation
under trouble code 41.
53
Rear Isolation Valve
Solenoid, short circuit.
Refer to the explanation
under trouble code 43.
54
Rear Pulse Width
Modulation Valve
Solenoid, short circuit.
Refer to the explanation
under trouble code 43.
61
Right Front Reset Switch,
open circuit. Refer to the
explanation under trouble
code 41.
62
Left Front Reset Switch,
open circuit. Refer to the
explanation under trouble
code 41.
63
Rear Reset Switch, open
circuit. Refer to the
explanation under trouble
code 41.
65
Pump Motor Relay, open
circuit. Refer to the
explanation under trouble
code 41. IMPORTANT -
This code may be FALSELY
set by an improperly
performed trouble code
clearing procedure.
66
Pump Motor Relay, short
circuit. Refer to the
explanation under trouble
code 41.
67
Pump Motor Circuit, open
circuit. This code indicates
an open circuit in the
connection between the
pump motor, and the EHCU
(Electro-Hydraulic Control
Unit).
68
Pump Motor Circuit,
shorted circuit. This code
indicates a shorted circuit in
the connection between the
pump motor, and the EHCU
(Electro-Hydraulic Control
Unit). Carefully check all
power and ground
connections at the EHCU.
71
EHCU (Electro-Hydraulic
Control Unit) has a RAM
(Random Access Memory)
error. Refer to the
explanation under trouble
code 41.
72
EHCU (Electro-Hydraulic
Control Unit) has a ROM
(Read Only Memory)
error. Refer to the
explanation under trouble
code 41.
73
EHCU (Electro-Hydraulic
Control Unit) has an
internal circuit error.
Refer to the explanation
under trouble code 41.
74
EHCU (Electro-Hydraulic
Control Unit) has an
internal circuit error
which is causing
excessive isolation time.
Refer to the explanation
under trouble code 41.
81
Brake (Stop Lamp) switch
circuit is shorted or open.
This code indicates a
malfunction in the stop
lamp switch circuit. Note
that this code can be set by
a driver who rides the brake
pedal.
85
Anti-lock indicator lamp
circuit is open. This code
if present, will be flashed by
the
brake warning lamp ,
not the anti-lock lamp, and
indicates an open circuit in
the anti-lock lamp circuit.
86
Anti-lock indicator lamp
circuit is shorted. This
code if present, will be
flashed by the
brake
warning lamp , not the anti-
lock lamp, and indicates a
short circuit in the anti-lock
lamp circuit.
88
Brake warning indicator
lamp circuit is shorted.
This code indicates a short
circuit in the brake warning
indicator lamp circuit.