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Home >> Ford >> 2007 >> Focus L4-2.3L VIN Z >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> Pinpoint Tests >> Test B: The Generic Electronic Module (GEM) Does Not Respond To The Scan Tool
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Test B: The Generic Electronic Module (GEM) Does Not Respond To The Scan Tool

PINPOINT TEST B: THE GENERIC ELECTRONIC MODULE (GEM) DOES NOT RESPOND TO THE SCAN TOOL


B1-B3:






B3-B5:






B6-B7:






Normal Operation
The GEM communicates with the scan tool through circuit 8-EE9 (WH/GN). Voltage and ground for the GEM is provided by redundant circuits. Circuits 29-AA17 (OG/WH) and 29-DK20 (OG/GN) provide voltage, and circuits 91-DK20 (BK/RD) and 31-DK20 (BK) provide ground.

Possible Causes
- Fuse
- Circuit 8-EE9 (WH/GN) open, short to ground or voltage
- Circuit 29-AA17 (OG/WH) open
- Circuit 29-DK20 (OG/GN) open
- Circuit 31-DK20 (BK) open
- Circuit 91-DK20 (BK/RD) open
- GEM
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