New Holland T8010 Manual page 1544

5 Volt Reference Voltage Too High
Cause:
The transmission controller provides 5 volts to the FNRP pod and the Master clutch pedal pot through pin 16 and
pin 17 of connector C351. The controller monitors the voltage at the two pins. If the voltage is higher than 5.8 volts,
this fault code will be recorded.
Possible failure modes:
1. Wiring harness shorted to power externally.
2. Internal problem with the transmission controller.
Solution:
Since the 5 volts is provided to the FNRP pod and the Master clutch pedal pot, relative symptoms or faults codes
will show up if the wire harness is shorted to power externally.
1. Troubleshooting by checking fault codes.
If fault codes 67 and 69 come with this fault code, there is a good chance the wiring from the transmission controller
to the FNRP pod is shorted to power.
If fault codes 12 comes with this fault code, there is a good chance the wiring from the transmission controller to
Master clutch pedal pot is shorted to power.
2. Troubleshooting by viewing the Instrumentation display.
Turn Key 'ON' and watch the shuttle position display.
If Forward icon stays lit up on display when not in Forward and Reverse icon stays lit up on display when not in
Reverse, there is a good chance the wiring from the transmission controller to the FNRP pod is shorted to power.
Turn Key 'ON' and get into Trans View to watch the Master clutch pedal position display.
If the Master clutch pedal position stays high on display when Master clutch pedal is depressed, there is a good
chance the wiring from the transmission controller to Master clutch pedal pot is shorted to power
3. Troubleshooting by checking pin connection.
Take pin 17 out of connector C351 and clear all Trans fault codes. (See the procedure for pin removal and erasing
fault codes in front of this section.)
Turn the Key 'Off' for a few seconds. Then turn Key 'ON' and check the fault code again. If this fault code comes
again, there is a good chance the wiring from the transmission controller to the FNRP pod is shorted to power.
Take pin 16 out of connector C351 and clear all Trans fault codes. Turn the Key 'Off' for a few seconds. Then turn
Key 'On' and check the fault code again. If this fault code comes again, there is a good chance the wiring from the
transmission controller to Master clutch pedal pot is shorted to power.
4. Check the wiring from the transmission controller to the FNRP pod and the Master clutch pedal pot.
If the wiring shortage to the power is suspected in the FNRP pod circuit,
Check the wiring between Pin 8 of connector C051 and pin 16 of connector C351 for shortage to power.
Check the wiring between Pin 6 of connector C051 and pin 13 of connector C351 for shortage to power.
Check the wiring between Pin 5 of connector C051 and pin 12 of connector C351 for shortage to power.
If the wiring shortage to the power is suspected in the Master clutch pedal pot circuit, Check the wiring between Pin
1 and pin 17 of connector C351 for shortage to power.
5. Check for Internal problem with the transmission controller.
Section 55 - Electrical System, Controller - Chapter 4
FAULT CODE TRANS 53
55-4-17