Change 1 2-621TM 9-2320-365-34-1CAUTIONUse care when connecting wiring harnessconnectors. Failure to comply may result indamage to equipment.CONTINUITY TEST(1) Set multimeter to ohms.(2) Connect positive (+) probe of multimeterto transfer case wiring harness connectorOSS pin A.(3) Connect negative (-) probe of multimeterto transfer case wiring harness externalconnector pin A and note reading onmultimeter.(4) If continuity is not present, replacetransfer case wiring harness (para 8-2).(5) Connect positive (+) probe of multimeterto transfer case wiring harness connectorOSS pin B.(6) Connect negative (-) probe of multimeterto transfer case external connector pin Band note reading on multimeter.(7) If continuity is not present, replacetransfer case wiring harness (para 8-2).(8) If continuity is present in steps (3) and (6),replace WTEC III transmission ECU(TM 9-2320-365-20-3).(9) Connect transfer case wiring harnessconnector OSS to output speed sensor.(10) Install gasket and valve body cover ontransfer case with ten screws.(11) Connect transmission external wiringharness transfer case connector to transfercase wiring harness external connector.(12) Add lubricating oil to transmission(TM 9-2320-365-20).(13) Connect batteries (TM 9-2320-365-20-3).
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