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Sensing system Right tool position sensor - Short circuit to B+
(G.10.A.95.84 - G.30.B.54)
AFX8010
E0019-03 - Right Header Height / Tilt Sensor
Cause:
The right height/tilt sensor (R-13) circuit is shorted to high voltage, or the sensor ground is open.
Possible failure modes:
1.
Sensor supply or signal wiring is shorted to high voltage (12V).
2.
Sensor ground wiring is open.
3.
Module internal failure (internal regulator failure).
Solution:
1.
Enter the Universal Display Plus "DIAG" screen. Select the "HDR HEIGHT/TILT" sort menu, and select
"RIGHT SEN" to check the voltage range. Manually raise and lower the header against the ground several
times while monitoring the voltage; the voltage should stay within range, and should change smoothly with
header sense plate movement.
The voltage range for a properly adjusted sensor is 0.2 - 4.7 volts.
A.
If the voltage reading is high (>4.7 volts) out of range, continue with Step 2.
B.
If the voltage reading is within the proper limits, the circuit may not be shorted at this time. Continue the
troubleshooting at Step 11.
NOTE: Visually inspect the wiring harness and connectors. Verify that the connector was fully installed.
Inspect the terminals and wires at the connector for pushed back or corroded terminals or damaged wires.
Flex the harnesses involved to reveal intermittent breaks or shorts in the wiring concerned.
2.
Key off. Disconnect connector X306, and use a multimeter to test for continuity to ground on connector X306
pin 1. There should be low resistance ( <1 ohms) to ground.
A.
If continuity is found ( <1 ohms), continue with Step 6.
B.
If no continuity is found, or there is high resistance (>1 ohms) to ground, continue with Step 3.
3.
Key off. Disconnect connector X032, and use a multimeter to test for continuity to ground on connector X032
pin 6. There should be low resistance ( <1 ohms) to ground.
A.
If continuity is found ( <1 ohms), there is an open circuit in the header (HH) harness between connector
X032 and connector X306 wire 847 blue. Locate the open and repair.
B.
If no continuity is found, or there is high resistance (>1 ohms) to ground, continue with Step 3.
4.
Key off. Disconnect connector X007. Use a multimeter to test for continuity between connector X007 pin 12
and chassis ground. There should be low resistance ( <1 ohms) to ground.
A.
If no continuity is found, or there is high resistance (>1 ohms) to ground, continue with Step 4.
B.
If continuity is found, there is an open circuit in feeder (FE) harness between connector X032 pin 6 and
connector X007 pin 12 wire 847 blue or 749 blue. Locate the open and repair.
5.
Key off. Carefully remove connector X020 from the bottom of CCM1. Use a multimeter to test for continuity
between connector X007 pin 12 and connector X020 pin J3-18.
A.
If continuity is found, continue with Step 5.
B.
If no continuity is found, there is an open circuit in front frame (FF) harness between connector X007 pin
12 and connector X020 pin J3-18 wire 749 blue or 501 blue. Locate the open and repair.
TOOL POSITIONING - LIFTING
9706 1 27/05/2004
G.10.A / 21
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