TM-9-2350-277-20-1 Unit Maintenance Manual Volume 1 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-1 ENGINE OIL LOW PRESSURE INDICATOR MALFUNCTIONS—Continued 0055 00 CY 1. Remove harness 12349881 circuit 27J/34 plug (1) from ENGINE OIL LOW PRESSURE indicator assembly jack (2). 2. Measure resistance between circuit 34 plug pin and ground. 3. Does multimeter read more than 0 ohms? YES NO CYN 1. Install harness 12349881 plug on ENGINE OIL LOW PRESSURE indicator jack. 2. Remove jumper wire. 3. Replace engine oil low pressure switch (WP 0320 00). 4. Verify no faults found. C2Y 1. Remove harness 12349873 plug (1) from harness 12349881 jack (2) at carrier bulkhead. 2. Measure resistance between harness 12349873 plug (1) pin D (3) and ground. 3. Does multimeter read 0 ohms? YES NO C2YN 1. Remove jumper wire. 2. Install harness 12349881 plug on ENGINE OIL LOW PRESSURE indicator assembly jack. 3. Install indicator cover lens and bulb. 4. Replace harness 12349873 circuit 34 (WP 0382 00). 5. Verify no faults found. 0055 00-5