TANK ASSEM. 1S1168 - Caterpillar

from contact 1 to contact 2 of the coils.
Check the resistances from contact 1 to the housing of the coils.Expected Result:The resistances of the coils are approximately 5 ohms. The resistances to the housings are greater than 5000 ohms.Results:
OK - The resistances of the coils are approximately 5 ohms. The resistances to the housings are greater than 5000 ohms. Proceed to Test Step 4.
NOT OK - The resistance of a coil is NOT approximately 5 ohms or the resistance to the housing is less than 5000 ohms.Repair: The coil has failed. Replace the solenoid. Stop.Test Step 4. CHECK THE VOLTAGE AT THE SOLENOIDS
Turn the key start switch and the disconnect switch to the ON position.
Actuate the offset switch to the left position and check the voltage at the left offset solenoid from contact 1 to contact 2.
Actuate the offset switch to the right position and check the voltage at the right offset solenoid from contact 1 to contact 2.Expected Result:The voltages are approximately 12 volts.Results:
OK - The voltages are approximately 12 volts.Repair: The problem is not electrical. Refer to Troubleshooting, "Steering System" for further details. Stop.
NOT OK - The voltage is less than 12 volts on one of the readings or both of the readings. Proceed to Test Step 5.Test Step 5. CHECK THE OUTPUT VOLTAGE AT THE ECM
At the back of the harness connector for the ECM, insert the 7X-1710 Multimeter Probes along contact 40 and contact 2 (wires C929-WH and 200-BK).
Turn the key start switch and the disconnect switch to the ON position.
Actuate the offset switch to the left position and check the voltage from contact 40 to contact 2 of the machine