HOUSING AS 8X2528 - Caterpillar

This procedure covers the following diagnostic code:
Table 1
Diagnostic Trouble Codes for Fuel Contains Water
J1939 Code Description Notes
97-15 Water In Fuel Indicator : High - least severe (1) The Electronic Control Module (ECM) detects the presence of water in the fuel for at least 60 seconds.
If equipped, the warning lamp will come on.
The fault will be cleared when no fuel is detected for at least 0.6 seconds. Note: Visual identification of water in the bowl may be impossible. Water may turn dark yellow in color in the fuel system. The similarity in color would prevent the ability to differentiate the water from the fuel.Recommended Actions
Note: Complete the procedure in the order in which the steps are listed.
Table 2
Troubleshooting Test Steps Values Results
1. Drain the Fuel/Water Separator Bowl
A. Turn the ignition key to the OFF position.
B. Drain the fuel/water separator bowl. Refer to the Operation and Maintenance Manual, "Fuel System Primary Filter/Water Separator - Drain".
C. If necessary, prime the fuel system. Refer to the Operation and Maintenance Manual, "Fuel System - Prime".
D. Turn the ignition key to the ON position. Do not start the engine. Wait for 1 minute.
Fuel/water separator
Result: The "Water-In-Fuel" warning disappears within 1 minute.
Proceed to Test Step 2.
Result: The "Water-In-Fuel" warning remains on.
Proceed to Test Step 3.
2. Confirm That There is No Water in the Fuel
A. Run the engine for 5 minutes.
Water in fuel
Result: The "Water-In-Fuel" warning does not reappear within the 5 minutes.
Return the unit to service.
Result: The "Water-In-Fuel" warning reappears within the 5 minutes.
Repair: The fuel supply is contaminated with water. Drain the fuel tank and then fill the fuel tank with clean fuel.
Repeat the procedure from Test Step 1.
3. Water-In-Fuel Switch
A. Check the operation of the Water-In-Fuel switch. Refer to Troubleshooting, "Water In Fuel - Test".
Water in fuel switch
Result: The Water-In-Fuel switch required a repair.
Repeat the procedure from Test Step 1.
Result The Water-In-Fuel switch is OK.
Repair: The fuel supply is contaminated with water. Drain the fuel tank and then fill the fuel tank with clean fuel.
Repeat the procedure from Test Step 1.