{"nhtsa_id":10248923,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2024-01-16","date":"2023-11-07","document_id":"0823923","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Transfer Case Shift Motor Wire Harness Connector Not Secured Customers may experience a Malfunction Indicator Lamp illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes have been set: U0418-00 Implausible Data Received From Brake System Control Module 1. C1444-98 T-Case Motor Overuse-Component or System Over Temperature. C00A8-13 4WD/AWD Transfer Case Unit Actuator Position Sensor B-Circuit Open. C00A7-13 4WD/AWD Transfer Case Unit Actuator Position Sensor A-Circuit Open. C149E-64 Transfer Case Motor Position Sensor-Signal Plausibility Failure. C1423-64 Transfer Case Internal Performance-Signal Plausibility Failure. C1406-13 Transfer Case Brake Control-Circuit Open. C1477-4B Transfer Case Clutch-Over Temperature. C140A-13 Transfer Case Motor Control-Circuit Open. U041E-00 Invalid Data Received From All Wheel Drive Control Module. U0422-00 Implausible Data Received From Body Control Module. U0418-00 Implausible Data Received From Brake System Control Module 1. U041E-00 Invalid Data Received Form All Wheel Drive Control Module. U0403-00 Implausible Data Received From T-Case. The customer may also comment on the following: 4WD Service light displayed in the Instrument Panel Cluster. This bulletin involves performing a push?pull?push test on the transfer case shift motor wire harness connector.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248923-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10248923-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10248923","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["C00A7","C00A8","C1406","C140A","C1423","C1444","C1477","C149E","U0403","U0418","U041E","U0422"],"topics":[],"vehicles":[{"make":"JEEP","model":"GRAND WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_jeep_grand-wagoneer"]},{"make":"JEEP","model":"WAGONEER","year_from":2023,"year_to":2023,"match":"exact","vehicle_ids":["2023_jeep_wagoneer"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}