Pinpoint Test Kc: Fuel Pump Control Module: Introduction
WARNING:
The fuel system remains under pressure after the engine is off. Relieve pressure before repairing. Highly flammable mixtures are present. To release pressure from the fuel system, carry out the following:
- Connect Fuel Pressure Test Kit 310-D009 (D95L-7211A) or equivalent.
- Gradually open the testing kit valve to relieve the fuel pressure in the vehicle fuel system and drain the fuel into a suitable container or return it to the fuel tank.
- To avoid unnecessary fuel spillage and fire hazard, any time fuel lines are disconnected, the ignition switch must be in the OFF position unless fuel pump operation is required for test purposes. Failure to follow these instructions may result in personal injury
WARNING:
Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.
WARNING:
Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING:
Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING:
When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.
WARNING:
Clean all fuel residue from the engine compartment. If not removed, fuel residue may ignite when the engine is returned to operation. Failure to follow this instruction may result in serious personal injury.
This pinpoint test is intended to diagnose the following:
- fuel pump (9H307)
- fuel pump control module (9D370)
- fuel pump control module 2 (9D370)
- fuel pump control module relay
- fuel pump control module relay 2
- inertia fuel shutoff (IFS) switch (9341)
- harness circuits: B+, GND, FP, FPC, FPGND, FPM, FPM2, FPPWR, FP2PWR, FPRTN, FP2RTN, IES, VPWR and VPWR Fuel
- PCM (12A650)
Harness Side
| Circuit | Pin |
|---|---|
| FPPWR (Fuel Pump Power) | 4 |
| FPRTN (Fuel Pump Return) | 3 |
Harness Side
| Circuit | Pin |
|---|---|
| VPWR Fuel | 1 |
| GND (Ground) | 4 |
| FPC (Fuel Pump Command) | 3 |
| FPM (Fuel Pump Monitor) | 7 |
| FPPWR (Fuel Pump Power) | 5 |
| FPRTN (Fuel Pump Return) | 8 |
Harness Side
| Circuit | Pin |
|---|---|
| B+ (Battery Positive Voltage) | 3 |
| FP (Fuel Pump). | 2 |
| FPRPWR (Fuel Pump Relay Power) | 1 |
| VPWR Fuel | 5 |
Harness Side
| Circuit | Pin |
|---|---|
| B+ (Battery Positive Voltage) | 3 |
| B+ (Battery Positive Voltage) | 1 |
| FP (Fuel Pump) | 2 |
| VPWR Fuel | 5 |
Harness Side
| Circuit | Pin |
|---|---|
| VPWR Fuel - B | 1 |
| VPWR Fuel - A | 2 |
Harness Side
| Circuit | Pin |
|---|---|
| FP (Fuel Pump) | 26 |
Harness Side
| Circuit | Pin |
|---|---|
| IES (Impact Event Signal) | 49 |
Harness Side
| Circuit | Pin |
|---|---|
| FP (Fuel Pump) | 6 |
Harness Side
| Circuit | Pin |
|---|---|
| IES (Impact Event Signal) | 42 |
Harness Side
| Circuit | Pin |
|---|---|
| FPM (Fuel Pump Monitor) | B27 |
| FP (Fuel Pump) | B42 |
| IES (Impact Event Signal) | B53 |
| FPC (Fuel Pump Command) | B58 |