Pinpoint Tests
The Powertrain Control Module (PCM) Does Not Respond To The Diagnostic Scan Tool
Refer to Wiring Diagrams Cell 14 for schematic and connector information.
Refer to Wiring Diagrams Cell 24 for schematic and connector information.
Refer to Wiring Diagrams Cell 25 for schematic and connector information.
Refer to Wiring Diagrams Cell 26 for schematic and connector information.
Normal Operation and Fault Conditions
The PCM communicates with the diagnostic scan tool through the HS-CAN1. An IDS session cannot be established if the PCM communication fails when attempting to identify the vehicle.
Possible Sources
Fuse Wiring, terminals and connectors PCM
PINPOINT TEST A : THE POWERTRAIN CONTROL MODULE (PCM) DOES NOT RESPOND TO THE
DIAGNOSTIC SCAN TOOL
A1 VERIFY WHETHER OTHER HS-CAN1 (HIGH SPEED-CONTROLLER AREA NETWORK 1) MODULES PASS THE NETWORK TEST
Using a diagnostic scan tool, perform the network test.
Is the text "pass" or a DTC listed next to any of the following modules (if equipped): APIM, BCM, ICM or PCM?
Yes | If "pass" or a DTC was listed next to the PCM, a network fault is not currently present. If "pass" or a DTC was listed next to one or more modules other than the PCM, GO to A2 |
|---|---|
No | No modules are currently communicating on the HS-CAN1. GO to Pinpoint Test AD |
A2 PC/ED (POWERTRAIN CONTROL/EMISSIONS DIAGNOSIS) MANUAL PINPOINT TEST QA VERIFICATION CHECK
Verify PC/ED manual pinpoint test QA has been performed.
Has pinpoint test QA been performed?
Yes | GO to A3 |
|---|---|
No | Refer to PC/ED manual. |
A3 CHECK THE HS-CAN1 (HIGH SPEED-CONTROLLER AREA NETWORK 1) TERMINATION RESISTANCE
Ignition OFF. Measure:
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.