What wire color feeds the fuel pump from the CCRM?

Pin 5 of the CCRM outputs circuit 238 DG/Y, which goes through splice S137 and continues as 238 GY/R through connectors C222M/C222F and C416 to the Inertia Fuel Shutoff (IFS) switch.

What does the Inertia Fuel Shutoff switch do?

Per the callout, it opens on vehicle impact to remove voltage from the fuel pump and stop the flow of gasoline.

What fuses power the CCRM circuits?

A 20 A FUEL PUMP fuse and a 30 A EEEC POWER fuse in the engine compartment fuse/relay box (both hot at all times), plus a 20 A fuse in the I/P fuse panel that is hot in start or run.

Where does the CCRM ground connect?

CCRM pin 15 grounds via wire 57 BK through splice S135 to ground G104 (see Grounds, page 10-4).

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1997 Ford Taurus CCRM Wiring Diagram - Fuel Pump & EEC Relay Circuits

Fuel pump relay and inertia switch wiring diagram with color codes

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Wiring diagram showing fuel pump relay, EEC relay, inertia fuel shutoff switch and color-coded circuits to the PCM.

AI caption November 2007 · Photo 340 of 579

This scanned Ford wiring diagram shows the Constant Control Relay Module (CCRM) circuit, focusing on the fuel pump and EEC power feeds. Power sources include a 20 A FUEL PUMP fuse in the engine compartment fuse/relay box (hot at all times), a 30 A EEEC POWER fuse (hot at all times), and a 20 A I/P fuse panel fuse (hot in start or run) feeding through connector C225. Inside the CCRM are the Fuel Pump Relay, EEEC Relay, and a solid-state relay control section. Wire circuits are identified by number and color: 931 O, 926 LB/O (PCM pin 80 via C191, C130F/C130M), 1075 DG/O, 20 W/LB, 238 DG/Y and 238 GY/R (fuel pump feed through the Inertia Fuel Shutoff switch via C222M/C222F and C416), 386 LB, 361 R, and 57 BK ground through splice S135 to G104. The diagram cross-references pages for power distribution (13-14), grounds (10-4), engine controls (23-5, 24-5, 25-5, 26-5), the PCM (23-2 through 26-4), and the IFS switch (23-10, 24-13, 25-10, 26-13). Notes explain that the IFS switch opens on vehicle impact to cut fuel pump voltage, and that the PCM uses sensor/actuator information to determine engine and transaxle operating conditions. This is a reference for diagnosing fuel pump, CCRM, and PCM power circuits.

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Frequently asked questions

What relays are inside the Constant Control Relay Module (CCRM) in this diagram?: The diagram shows the Fuel Pump Relay, the EEEC Relay, and a solid-state relay control section inside the Constant Control Relay Module.
What wire color feeds the fuel pump from the CCRM?: Pin 5 of the CCRM outputs circuit 238 DG/Y, which goes through splice S137 and continues as 238 GY/R through connectors C222M/C222F and C416 to the Inertia Fuel Shutoff (IFS) switch.
What does the Inertia Fuel Shutoff switch do?: Per the callout, it opens on vehicle impact to remove voltage from the fuel pump and stop the flow of gasoline.
What fuses power the CCRM circuits?: A 20 A FUEL PUMP fuse and a 30 A EEEC POWER fuse in the engine compartment fuse/relay box (both hot at all times), plus a 20 A fuse in the I/P fuse panel that is hot in start or run.
Where does the CCRM ground connect?: CCRM pin 15 grounds via wire 57 BK through splice S135 to ground G104 (see Grounds, page 10-4).