STEP/SEQUENCE RESULT WHAT TO DO NEXT TM 9-2320-363-20-1 Section 4 TROUBLESHOOTING CHARTS E. FLASH CODE: 81 - CRANKCASE MONITOR (CCM) SIGNAL VOLTAGE HIGH (CONT’D) J1587 CODE: P98 3 - OIL LEVEL CIRCUIT FAILED HIGH P101 3 - CRANKCASE PRESSURE CIRCUIT FAILED HIGH 81.5 Check for Short Turn ignition off. Less than or Signal line (ckt #906) is shorted Disconnect engine harness equal to 10,000 ohms. to engine +5 Volt line (ckt connector at the ECM. #416). Repair short.  Then go to Read resistance between sockets 81-30. W1 and N1 on engine harness connector. Greater than Go to 81-6. 10,000 ohms or open. 81-6 Check for Short to Battery + Remove both fuses to ECM. All readings are Go to 81-8. Disconnect vehicle harness greater than 10,000 ohms and 5-way power harness or open. connectors at ECM. Read resistance between sockets Any reading is A short exists between sockets N1 of engine harness connector less than or equal to where less than 10,000 ohms and socket B3 of vehicle 10,000 ohms. resistance was read.  Repair harness connector. short and reinsert fuses ( or Also read resistance between reset breakers).  Then go to socket N1 on engine harness 81-30. connector and the following sockets on the 5-way power harness connector: A, and C. 81-7 Final Check Reconnect all connectors.   Code 98-101/3. Replace ECM.  Then go to 81-30. Turn ignition on. Clear codes.   No codes.   Repairs are complete. Start engine.  Run for 1 minute or until "Check Engine" light Any other codes Go to START-1, pg 3-345.41, comes on. except Code 98-101/3. to service other codes. Stop engine. Clear ACTIVE CODES 81.8 Check CCM Connectors Inspect terminals at CCM Terminals and Replace CCM.  Then go to 81-7. connectors (sensor side and connectors are okay. harness side) for damage; bent, corroded, and unseated pins or Problem found Repair terminals/connectors. sockets Then go to 81-30. Change 3  3-345.379