Test B: No Communication With SCIL Module

Check Black/Light Blue Wire For Open - Disconnect Steering Column/Ignition/Lighting (SCIL) control module 26-pin connector C288 (located behind passenger's side of instrument panel, to right of glove box). SCIL module contains one 16-pin connector, one 22-pin connector and two 26-pin connectors.
Using an ohmmeter, check resistance between ground and SCIL module 26-pin connector C288 terminal No. 14 (Black/Light Blue wire). See Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Black/Light Blue wire and repeat DATA LINK DIAGNOSTIC TEST using NGS tester.
Check Black Wire For Open - Disconnect SCIL module 26-pin connector C287. Using an ohmmeter, check resistance between ground and SCIL module 26-pin connector C287 terminal No. 7 (Black wire). See Fig 1 . If resistance is 5 ohms or less, go to next step. If resistance is more than 5 ohms, repair open in Black wire and repeat DATA LINK DIAGNOSTIC TEST using NGS tester.
Check For Voltage At SCIL Module Connector C287 - Using a voltmeter, check voltage between ground and SCIL module 26-pin connector C287 terminals No. 11 (Dark Blue/Light Green wire), No. 14 (Red/Orange wire), No. 15 (White/Light Green wire) and No. 26 (Light Blue/Red wire). See Fig 1 . If battery voltage exists at all specified terminals, a communication network problem exists. See MODULE COMMUNICATIONS NETWORK article to diagnose network concern.
If battery voltage does not exist, check for defective fuse or wiring circuit from fuse in fuse panel to connector C287 for the SCIL module. For terminal number, wire color and fuse application, see FUSE & WIRE APPLICATION table. Repair fuse or wiring circuit as necessary and proceed to next step.
Check For Voltage At SCIL Module Connector C289 - Disconnect 16-pin connector C289 from SCIL module. Using a voltmeter, check voltage between ground and SCIL module 16-pin connector C289 terminals No. 5 (Brown/White wire), No. 6 (Orange/Black wire) and No. 7 (Pink/Light Green wire). See Fig 2 . If battery voltage exists at all specified terminals, a communication network problem exists. See MODULE COMMUNICATIONS NETWORK article to diagnose network concern.
If battery voltage does not exist, check for defective fuse or wiring circuit from fuse to connector C289 for the SCIL module. For terminal number, wire color and fuse application, see FUSE & WIRE APPLICATION table. Once repair is complete, reinstall all connectors and repeat DATA LINK DIAGNOSTIC TEST using NGS tester.

FUSE & WIRE APPLICATION

Terminal No. (Wire Color)

Fuse No. (Amperage)

Fuses & Wiring For Connector C287

11 (Dark Blue/Light Green)

⁽¹⁾ 25 (10-Amp)

14 (Red/Orange)

⁽¹⁾ 26 (15-Amp)

15 (White/Light Green)

⁽¹⁾ 19 (10-Amp)

26 (Light Blue/Red)

⁽¹⁾ 1 (10-Amp)

Fuses & Wiring For Connector C289

5 (Brown/White)

⁽¹⁾ 13 (15-Amp)

6 (Orange/Black)

⁽¹⁾ 7 (15-Amp)

7 (Pink/Light Green)

⁽²⁾ 12 (15-Amp)

⁽¹⁾	Fuse panel is located at driver's side end of instrument panel, near door opening.

⁽²⁾	Fuse box is located at driver's side of engine compartment, near spring tower.

Fig 1: Identifying SCIL Module Connectors C287 & C288 Terminals

Courtesy of FORD MOTOR CO.

Fig 2: Identifying SCIL Module Connector C289 Terminals

Courtesy of FORD MOTOR CO.