Pinpoint Test 11: The Front Display Interface Module (Fdim) Does Not Respond to the Scan Tool

PINPOINT TEST 11: THE FRONT DISPLAY INTERFACE MODULE (FDIM) DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation
The front display interface module (FDIM) communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits (GY/O) (MS-CAN +) and (V/O) (MS-CAN -) provide the network connection to the front display interface module. The FDIM shares the MS-CAN network with the instrument cluster, electronic manual temperature control (EMTC) module, smart junction box (SJB), audio unit, front control interface module (FCIM) and satellite radio receiver. Voltage to the front display interface module is provided by circuit (BR/R). Ground is provided by circuit (B/L).

Possible Causes
- Fuse
- Wiring, terminals or connectors
- FDIM

Diagnostic Procedure

CAUTION: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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