FUEL SPIN ON 3I1591 - Caterpillar

Table 1
J1939 Code and Description Comments
8156-3
Well Stimulation Pump Gear Box Oil Pressure : Voltage Above Normal The Electronic Control Module (ECM) detects signal voltage that is not in the acceptable range.
The code is logged.
8156-4
Well Stimulation Pump Gear Box Oil Pressure : Voltage Below Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8157-3
Well Stimulation Pump Gear Box Oil Temperature : Voltage Above Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8157-4
Well Stimulation Pump Gear Box Oil Temperature : Voltage Below Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8640-2
Well Stimulation Pump Vibration 1 : Erratic, Intermittent, or Incorrect The ECM detected that the vibration sensor is failed.
8640-3
Well Stimulation Pump Vibration 1 : Voltage Below Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8640-4
Well Stimulation Pump Vibration 1 : Voltage Above Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8641-2
Well Stimulation Pump Vibration 2 : Erratic, Intermittent, or Incorrect The ECM detected that the vibration sensor is failed.
8641-3
Well Stimulation Pump Vibration 2 : Voltage Below Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8641-4
Well Stimulation Pump Vibration 2 : Voltage Above Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8642-2
Well Stimulation Pump Vibration 3 : Erratic, Intermittent, or Incorrect The ECM detected that the vibration sensor is failed.
8642-3
Well Stimulation Pump Vibration 3 : Voltage Below Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged.
8642-4
Well Stimulation Pump Vibration 3 : Voltage Above Normal The ECM detects signal voltage that is not in the acceptable range.
The code is logged. Diagnostics on the Cat® Electronic Technician (ET)Wiggle Test - The Wiggle Test allows you to monitor the status of the signals from the sensors.For additional information regarding the Wiggle Test, refer to the documentation that accompanies the Cat ET software.
Table 2
Troubleshooting Test Steps Values Results
1. Check for Codes
A. Connect Cat® Electronic Technician (ET) to the service tool connector.
B. Determine if a code is active or logged.
Codes
Result: A -2 code is active.
Proceed to Test Step 6.
Result: A -3 code is active.
Proceed to Test Step 3.
Result: A -4 code is active.
Proceed to Test Step 2.
2. Create a Short at the Sensor Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the sensor with the active -4 code.
C. Install the jumper wire between the following terminals at the sensor connector:
- For the lube oil pressure sensor and vibration sensors Terminal 1 (voltage supply) and Terminal 3 (signal)
- For the lube oil temperature sensor Terminal A (voltage supply) and Terminal C (signal)
D. Connect Cat ET.
E. Use Cat ET to monitor the following:
- -3 code
F. Turn the keyswitch to the OFF position.
Create a Short
Result: A -3 code did not become active.
Proceed to Test Step 4.
Result: A -3 code became active.
Repair: The wiring