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C2122–T-CASE/DIFFERENTIAL SWITCH SUPPLY VOLTAGE CIRCUIT LOW (CONTINUED) 4. (K77) TRANSFER CASE POSITION SENSE CIRCUIT SHORT TO GROUND Turn the ignition off. Disconnect the Final Drive Control Module harness connector. Measure the resistance between the (K77) Transfer Case Position Is the resistance below 5.0 ohms? Yes >> Repair the (K77) Transfer Case Position Sense circuit for a short to ground. Perform the FDCM VERIFICATION TEST. (Refer to 3 - No >> Go to 5 5. (T537) LOCKER SWITCH SUPPLY CIRCUIT SHORT TO GROUND Measure the resistance between the (T537) Locker Switch Supply cir- Is the resistance below 5.0 ohms? Yes >> Repair the (T537) Locker Switch Supply circuit for a short to ground. Perform the FDCM VERIFICATION TEST. (Refer to 3 - No >> Go to 6 6. FINAL DRIVE CONTROL MODULE View repair. Repair Replace the Final Drive Control Module in accordance with the Service information. Perform the FDCM VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE - DIAGNOSIS 21 - 1320 TRANSFER CASE - ELECTRICAL DIAGNOSTICS (POWER WAGON) DR/DH |