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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1085 (Four-Wheel Drive Systems) >> Diagnosis And Testing >> Four-Wheel Drive Systems - Vehicles With: 1-Speed Torque On Demand Transfer Case >> Pinpoint Tests >> Pinpoint Test B : DTC U300D:11 >> Notes

Pinpoint Test B : DTC U300D:11: Notes

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.

REFER to: Four-Wheel Drive Systems - System Operation and Component Description . Refer to Wiring Diagram Four Wheel Drive Systems for schematic and connector information.

Normal Operation 

The TCCM receives ignition switch position status from the hardwired run/start input to TCCM and the ignition switch position status message communicated by the IPC over the HS-CAN. The ignition switch position status message originates from the BCM which communicates the ignition switch position status over the MS-CAN (medium speed-controller area network). The IPC acts as a gateway module, transferring the ignition switch status message from MS-CAN to HS-CAN. For information regarding network messaging, REFER to: Communications Network .

DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
U300D:11 Ignition Input On/Start: Circuit Short To Ground This DTC sets when the ignition switch position status message broadcast by the BCM over the HS-CAN does not match the hardwired run/start input circuit voltage signal at the TCCM.

Possible Sources: