Which fuse powers the PATS transceiver module?

Fuse 12, a 15A fuse in the Central Junction Box (see Power Distribution, page 13-13). The circuit is hot in START or RUN.

What wire color feeds power to the PATS transceiver module?

A 16-gauge RD/LG (red/light green) wire runs from fuse 12 through splice S259 to pin 2 (START OR RUN) at connector C209, carrying 12V in start or run.

How does the PATS transceiver connect to the instrument cluster?

Circuit 1215 WH/LG connects to pin 4 (TX INPUT) and circuit 1216 GY/OG connects to pin 3 (RX INPUT); the instrument cluster is shown on page 63-3.

Where does the PATS transceiver module ground?

Pin 1 (0V) at connector C209 runs through circuit 676 PK/OG (pink/orange), via splice S210, to ground G203 (see Grounds, page 10-8).

What connector serves the PATS transceiver module?

Connector C209 is shown at the module for both the power input (pin 2) and the ground output (pin 1).

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1997 Mercury Cougar PATS Transceiver Module Wiring Diagram - Fuse 12, C209

Passive anti-theft system PATS transceiver module wiring diagram with color-coded circuits

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Wiring diagram for the passive anti-theft system (PATS) transceiver module showing TX/RX inputs and power circuits.

AI caption March 2009 · Photo 31 of 86

This document is a wiring diagram for the Passive Anti-Theft System (PATS) Transceiver Module. Power is supplied on a circuit that is hot in START or RUN, fed through fuse 12 (15A) in the Central Junction Box (referenced to page 13-13), then through a 16-gauge red/light green (RD/LG) wire via splice S259 to pin 2 (START OR RUN input, 12V in start or run) of the PATS transceiver module at connector C209. The transceiver communicates with the instrument cluster (referenced to page 63-3) via two circuits: circuit 1215 white/light green (WH/LG) to pin 4 (TX INPUT) and circuit 1216 gray/orange (GY/OG) to pin 3 (RX INPUT). Ground is provided from pin 1 (0V) at connector C209 through circuit 676 pink/orange (PK/OG), via splice S210, to ground G203 (grounds referenced on page 10-8). The diagram gives searchers fuse assignment and rating, circuit numbers, wire gauges and colors, connector and splice identifiers, and cross-references to the power distribution, instrument cluster, and grounds sections of the wiring manual. It is useful for diagnosing PATS-related no-start conditions or theft-light issues by tracing power, communication, and ground circuits.

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Frequently asked questions

Which fuse powers the PATS transceiver module?: Fuse 12, a 15A fuse in the Central Junction Box (see Power Distribution, page 13-13). The circuit is hot in START or RUN.
What wire color feeds power to the PATS transceiver module?: A 16-gauge RD/LG (red/light green) wire runs from fuse 12 through splice S259 to pin 2 (START OR RUN) at connector C209, carrying 12V in start or run.
How does the PATS transceiver connect to the instrument cluster?: Circuit 1215 WH/LG connects to pin 4 (TX INPUT) and circuit 1216 GY/OG connects to pin 3 (RX INPUT); the instrument cluster is shown on page 63-3.
Where does the PATS transceiver module ground?: Pin 1 (0V) at connector C209 runs through circuit 676 PK/OG (pink/orange), via splice S210, to ground G203 (see Grounds, page 10-8).
What connector serves the PATS transceiver module?: Connector C209 is shown at the module for both the power input (pin 2) and the ground output (pin 1).