Bendix Commercial Vehicle Systems WINGMAN ADVANCED FLR20 SENSOR - Manual (Page 26)

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4.4 CLEARING DIAGNOSTIC
TROUBLE CODES (DTCs)
This procedure must be used when troubleshooting the
diagnostic trouble codes shown in Table 6.
Clear the Wingman ® Advanced ™ system Diagnostic Trouble
Codes (DTCs) using the Bendix ® ACom ® service tool. Click
the “Clear” button located on the “Read / Clear Fault Codes”
screen. Using ignition power only, power off the vehicle
for at least 1 minute. Next, start the engine and run it at
idle for at least 15 seconds.
Drive the vehicle and, on a test track or suitable section
of roadway, engage the cruise control to verify proper
operation.
If the error returns, call Bendix at 1-800-AIR-BRAKE
(1-800-247-2725, option 2) for assistance.
4.5 TROUBLESHOOTING DIAGNOSTIC
TROUBLE CODES: POWER SUPPLY
IGNITION VOLTAGE TOO LOW
Measure the ignition voltage under load. Ensure that the
ignition voltage is greater than 10 VDC (volts DC). Check
the vehicle battery and associated components. Inspect
for damaged wiring, damaged or corroded connectors and
loose connections. Check the condition of the fuse.
IGNITION VOLTAGE TOO HIGH
Measure the ignition voltage. Ensure that ignition voltage
is not greater than 16 VDC. Check the vehicle battery
and associated components. Inspect for damaged wiring,
damaged or corroded connectors and loose connections.
POWER SUPPLY TESTS
1. Take all measurements at the radar sensor harness
connector.
2. Place a load (e.g. 1157 stop lamp) across the supply
voltage and ground connection. Measure the voltage
with the load. The supply voltage on pin 8 to ground
should measure between 10 to 16 VDC (volts DC).
3. Check for damaged wiring, damaged or corroded
connectors and loose connections.
4. Check the condition of the vehicle battery and associ-
ated components. Ensure the connection to ground is
secure and tight.
5. Using the procedures described by the vehicle
manufacturer, check the alternator output for excessive
noise.
Power Supply Pin Codes (4.5)
6 7 8 9 10
5 1 2 3 4
(Looking into the Front of the Harness Connector)
Pin # Description
1 J1939 High
2 Not Used
3 Not Used
4 Not Used
5 Radar Sensor Ground GND (-)
6 J1939 Low
7 Not Used
8 Supply Voltage IGN (+)
9 Not Used
10 Not Used
TABLE 7 - HARNESS CONNECTOR PINS
4.6 SERIAL DATA (J1939)
COMMUNICATIONS LINK
Check for a loss of communications between the Bendix ®
Wingman ® Advanced ™ system radar sensor, the ABS
controller, the engine ECU, and other devices connected
to the J1939 link. Check for damaged or reversed J1939
wiring. Check for corroded or damaged connectors and
loose connections. Using procedures described by the
vehicle manufacturer, verify the presence of the engine
ECU and the ABS controller on the J1939 link.
Verify the engine ECU configuration. Check for other
devices inhibiting J1939 communications.