E0153-04-Engine Oil Temperature Shorted To Low Source (B.60.A.95.92 - G.30.B.53) - New Holland CX720 Repair Manual

E0153-04-Engine Oil Temperature Shorted To Low Source
(B.60.A.95.92 - G.30.B.53)
E0153-04 - Engine Oil Temperature Shorted To Low Source
Cause:
The engine oil temperature sensor (B-03)[Iveco] or engine oil temperature switch (S58)[NH 7.5L] circuit is shorted to
ground.
Possible failure modes:
1. Sensor supply wiring shorted to ground.
2. Controller internal failure (internal regulator failure).
Solution:
1. Enter the InfoView monitor - "Diagnose info" screen.
Select "Engine" sub menu.
Select "Engine Oil Temperature" and check voltage range.
The proper voltage range is 0.5 - 4.9 volts.
A. If the voltage reading is low out of range (0 - 0.5 volts), continue with Step 2.
B. If the voltage reading is within the proper limits, continue the troubleshooting at step 4.
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. The voltage reading on the InfoView monitor is low (0.5 volts or less). Disconnect the coolant temperature
sensor connector X311.
A. If the voltage increases to 0.5 - 4.9 volts, the short is in the sensor or sensor wiring. Replace the sensor.
B. If the voltage remains low out of range, continue with step 3.
3. The voltage reading on the InfoView monitor is low. Disconnect the engine harness from the main frame harness
at connector X010.
A. If the voltage increases to 0.5 - 4.9 volts, the short is in the engine (EN) harness between connector X010
pin 10 and connector X311 pin B (Iveco) or connector X209 pin A (NH 7.5L) wire 504 yellow. Locate the
short to ground and repair.
B. If the voltage remains low out of range, the short is in the main frame (MF) harness between connector
X010 pin 10 and connector X016 pin J2-27 wire 504 yellow. Locate the short to ground and repair.
4. Operate the machine while monitoring InfoView monitor.
A. If no low out of range readings are indicated, erase the fault code and continue operation.
POWER PRODUCTION - LUBRICATION SYSTEM
2 4/7/2006
B.60.A / 31