TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 Table 2-1. Mechanical Troubleshooting (Cont’d) MALFUNCTION TEST OR INSPECTION TORQUE CONVERTER CLUTCH SOLENOID With the transmission electrical connector disconnected, measure the resistance between pins S and E. Resistance should be between 10 to 14 ohms. LOW HIGH Check for: - High resistance of solenoid; replace. - Wires and connectors for breaks or bad connections; repair or replace. Check for: - Low resistance of solenoid; replace. - Short in wires or connectors; repair or replace. TRANSMISSION FLUID TEMPERATURE SENSOR With the transmission electrical connector disconnected, measure the resistance between pins M and L. The resistance should be high at low temperatures and low at high temperatures. At room temperature the resistance should be between 2500 and 5000 ohms. LOW HIGH Check for: - High resistance of solenoid; replace. @ 0°C (32'F) > 11,000 ohms @ 20°C (680F) > 4,100 ohms @ 40°C (104°F) > 1,700 ohms - Opens, breaks, and bad connections in the wires and connectors; repair or replace. Check for: - Low resistance of solenoid; replace. O 00C (320F) > 7,800 ohms @ 20°C (68°F) > 2,900 ohms @ 40°C (104°F) > 1,200 ohms - Shorts between wires or ground in the wires and connectors; repair or replace. 2-12.2