What wire colors connect the PATS transceiver to the instrument cluster?

Circuit 1215 WH/LG (white/light green) carries the TX input to cluster pin 20, and circuit 1216 GY/OG (gray/orange) carries the RX input through connector C209 to cluster pin 21.

Which cluster pins are the SCP data bus wires?

SCP BUS – is pin 17 (circuit 915 PK/LG) and SCP BUS + is pin 18 (circuit 914 TN/OG), connecting through C254 to the multiplex communication network.

What wire triggers the brake warning indicator in the cluster?

Circuit 977 VT/WH (violet/white) from cluster pin 14 through C254; it splices at S241 and runs to both the park brake switch (via C223M/C223F and C236) and the brake fluid level switch (via C201F/C201M and C170).

How does the low washer fluid warning work?

The windshield washer low fluid switch closes with low washer fluid level, providing a signal on circuit 82 PK/YE to cluster pin 1 (LOW WASHER FLUID INPUT); the switch grounds through circuit 57 BK at S201 to G200.

What information does the instrument cluster receive over the SCP network?

Vehicle speed, odometer, Trac Active indicator (if equipped), high beam indicator, speed control indicator, O/D Off indicator, Check Trac indicator (if equipped), air suspension indicator, door ajar indicator, luggage compartment lid ajar indicator, ABS warning indicator, Service Engine Soon indicator, fail/safe cooling indicator, safety belt indicator, and engine coolant temperature.

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Ford/Mercury Instrument Cluster Wiring Diagram 63-3 – SCP, PATS, Brake Warning

Ford 63-3 instrument cluster wiring diagram with PATS, SCP bus, washer-fluid and brake-fluid switches

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Ford instrument cluster wiring (page 63-3): SCP network 315 PK/LG and 314 TN/OG, PATS TX/RX, low washer-fluid and brake-fluid switch circuits to grounds G200/G102/G203.

AI caption March 2009 · Photo 30 of 86

This is page 63-3 of a Ford factory-style wiring diagram covering the Instrument Cluster circuit. It shows the solid-state instrument cluster and its connections: PATS transceiver module TX/RX signals (circuits 1215 WH/LG and 1216 GY/OG through connector C209 to cluster pins 20 and 21), the multiplex communication (SCP) network bus lines (915 PK/LG and 914 TN/OG to pins 17 and 18 via C254), the low washer fluid input (circuit 82 PK/YE via C255 and C1021 to the windshield washer low fluid switch, grounded through 57 BK at S201/G200), and the brake indicator circuit (pin 14, circuit 977 VT/WH) feeding both the park brake switch (via C223M/C223F and C236) and the brake fluid level switch (via C201F/C201M and C170, grounded at S137/G102). A branch on circuit 409 TN/BK runs through C292 to the ignition switch (START/RUN/OFF/ACC/LOCK), grounded through 57 BK at S207/G203. A note lists all information the cluster displays over the SCP network, including vehicle speed, odometer, various warning indicators, and engine coolant temperature. Cross-references point to pages 112-1 (PATS), 14-2/14-3 (multiplex network), 149-3 (ignition switch testing), and grounds pages 10-4, 10-5, and 10-7.

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Frequently asked questions

What wire colors connect the PATS transceiver to the instrument cluster?: Circuit 1215 WH/LG (white/light green) carries the TX input to cluster pin 20, and circuit 1216 GY/OG (gray/orange) carries the RX input through connector C209 to cluster pin 21.
Which cluster pins are the SCP data bus wires?: SCP BUS – is pin 17 (circuit 915 PK/LG) and SCP BUS + is pin 18 (circuit 914 TN/OG), connecting through C254 to the multiplex communication network.
What wire triggers the brake warning indicator in the cluster?: Circuit 977 VT/WH (violet/white) from cluster pin 14 through C254; it splices at S241 and runs to both the park brake switch (via C223M/C223F and C236) and the brake fluid level switch (via C201F/C201M and C170).
How does the low washer fluid warning work?: The windshield washer low fluid switch closes with low washer fluid level, providing a signal on circuit 82 PK/YE to cluster pin 1 (LOW WASHER FLUID INPUT); the switch grounds through circuit 57 BK at S201 to G200.
What information does the instrument cluster receive over the SCP network?: Vehicle speed, odometer, Trac Active indicator (if equipped), high beam indicator, speed control indicator, O/D Off indicator, Check Trac indicator (if equipped), air suspension indicator, door ajar indicator, luggage compartment lid ajar indicator, ABS warning indicator, Service Engine Soon indicator, fail/safe cooling indicator, safety belt indicator, and engine coolant temperature.