MAMUSTANG ATLASTHE ENTHUSIAST'S REFERENCE

2016 workshop · Electrical Distribution

Communications Network

418-00 Module Communications Network

2016 MustangReference 5,951 / 6,619HTML edition
← Chapter contentsProcedure contents

Positive Lead

Measurement / Action

Negative Lead

C2431-16

Ground

C2431-15

Ground

Disconnect modules one at a time until the resistance to ground is greater than 1,000 ohms.

APIM (if equipped) C2383 or C2342 (touchscreen display) ACM C240A DSP C2470 (if equipped) FCDIM C2123 (if equipped) IPC C220

Are the resistances greater than 1,000 ohms?

Yes

For the APIM, GO to AF20 For the ACM, GO to AF21 For the DSP, GO to AF22 For the FCDIM, GO to AF24 For the IPC, GO to AF23

No

REPAIR the circuit in question. CONNECT all modules.

AF12 CHECK FOR RESTORED COMMUNICATION WITH THE GWM (GATEWAY MODULE A) AND IPC (INSTRUMENT PANEL CLUSTER) DISABLED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: BCM fuse 13 (7.5A). Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

INSTALL the fuse. GO to AF13

No

INSTALL the fuse. GO to AF14

AF13 CHECK FOR RESTORED COMMUNICATION WITH THE IPC (INSTRUMENT PANEL CLUSTER) DISCONNECTED

NOTE: When re-running the network test, close the network test application first or the screen display reverts back to the prior network test results.

Disconnect: IPC C220. Using a diagnostic scan tool, perform the network test.

Do all other HS-CAN3 modules pass the network test?

Yes

CONNECT the IPC. GO to Pinpoint Test G

No

CONNECT the IPC. GO to Pinpoint Test AC

AF14 VERIFY VEHICLE EQUIPMENT - APIM (SYNC MODULE) OR FCDIM (FRONT CONTROL/DISPLAY INTERFACE MODULE)

Inspect the vehicle for an APIM or a FCDIM.

Is the vehicle equipped with an APIM or a FCDIM?

Source reference 5951

2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.