HALDEX-L31204
HALDEX M939 INFOCENTER
HAND-HELD DIAGNOSTIC TOOL; INSTRUCTION MANUAL
NOVEMBER 2003
HALDEX-L31204 - Page 7 of 10
S2A 03
2A Sensor/wiring open or short circuit.
S2B 04
2B Sensor/wiring open or short circuit.
LOW SENSOR OUTPUT GROUP
S2A 13
2A Sensor system fault.
S2B 14
2B Sensor system fault.
Possible causes:
Fuse blown. InfoCenter or cable fault. Open
SENSOR BAR
Bar displayed =Sensor output O.K.
Bar not displayed =Sensor output too low. Check sensor gap.
EXC 20
Incorrect exciter type
Possible causes:
Unequal Exciter tooth count on
hubs
INTERMITTENT LOW SENSOR OUTPUT GROUP
S2A 23
2A Sensor system fault.
S2B 24
2B Sensor system fault.
BLANK DISPLAY
No power to ABS and/or Infocenter
OPEN OR SHORT SENSOR OUTPUT GROUP
Possible causes:
Sensor worn, maladjusted
sensor, wiring open or short circuit.
Possible causes:
Loose sensor,connection,bracket or exciter.
Damaged exciter. Maladjusted sensor or worn
sensor cable insulation. Wheel bearing failure or
adjustment.
Diagnostic Fault Code List
5
Possible causes:
Sensor failure,
sensor wiring open or short circuit. Sensor
Wheel bearing failure or adjustment
resistance should be 980 – 2350 ohms
Verify Wire Ties on sensor cables
connected to air hose are not too tight.
Excessive grease may prevent
secure sensor connections.
Verify Wire Ties on sensor cables
connected to air hoses are not too tight.
Excessive grease may prevent secure sensor
connections.
Verify Wire Ties on sensor cables connected
to airlines are not too tight.
Excessive grease may prevent secure sensor
connections.
Inspect exciter ring for damage
(These faults can only be created when the vehicle speed is greater than 6 MPH).
Circuit B-.
Poor connection at diagnostic plug.
OK 00
System is O.K.vehicle is moving.
OK 07
System is O.K.vehicle is stationary
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(These faults can only be created when the vehicle speed is greater than 6 MPH).
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