Installer Screen
Performance Monitoring Verification
13-12
MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION
80-J4866-2 Rev. G
Performance Monitoring Faults and Descriptions
Active Fault Field Value Definitions
Display
Shows
Associated
Fault
Description/Symptom
Possible Cause
0
No Power
(MCP100)
Power detected OFF for
more than the wake-up
time.
Main power was lost, causing the MCP to stay
asleep longer than its wake-up interval.
1
RPM Zero
(MCP100)
RPM zero when speed is
non-zero.
-RPM sensor or connection problem.
-J1708 selection parameter set wrong.
-In rare cases, no idle can be caused by faulty axle
sensor input (e.g., wires reversed) causing a
positive reading for speed while the vehicle is
stationary.
2
Bad Ignition
(MCP100)
Ignition OFF and speed or
RPM non-zero.
Problem with MCP100’s ignition line wiring or fuse.
3
RPM Sensor
(MCP100)
Engine posted PID (194)
and PID (190).
RPM sensor or connection problem to the engine,
detected by the engine’s diagnostics.
4
Speed Sensor
(MCP100)
Engine posted PID (194)
and PID (84).
Speed sensor or connection problem to engine,
detected by the engine’s diagnostics.
9
LTD
Mismatch
(MCP100)
LTD mismatch with stored
MCP100 data.
-Engine run with main power disconnected.
-Engine run with data link disconnected.
-Engine run with ignition line disconnected.
A
Bad Speed
(MCP100)
More than 2 hrs IGN = ON
with Spd = 0, RPM greater
than 1300.
-Speed sensor or connection problem—MCP100.
-Speed sensor or connection problem—engine.
-Engine speed sensor parameter not enabled.
B
0 Spd and
RPM
(MCP100)
More than 2 hrs with IGN
= ON with Spd = 0, RPM =
0.
-Disconnect of entire accessory cable.
-J1708 selection parameter set wrong.
-Data link connection problem.
-Driver using ignition position for accessory
operation.
-MCP100 ignition line wired to accessory position.
D
MCP100
Speed (MCP)
Speed signal constant for
more than 5 minutes.
A pulse generator may have been connected to
either the MCP100 or the engine.
E
Hard Braking
Event
Speed is suddenly
decreased by more than 9
MPH/second (speed must
be above 20 MPH for this
fault to occur.
Driver is braking too quickly (hard braked).