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volvo 850 turbo 1994 fuel pump relay location

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1995 Volvo 850 L5-2.3L Turbo Relay Identification and Location

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Relay Identification and Location Relays Inside the Central Electrical Unit 101-102Control module, cruise control (4/3) 103 Fuel pump relay (2/23) 104,108Main headlight relay with bulb malfunction indicator (2/1) 105 Overload relay +X supply (2/30) 106 Overload relay +15 supply (2/31) 107 Overload relay +X supply (2/60) 201 Fog light relay (2/2) 202 Relay, deadlock setting (2/47) 203 Relay, windshield intermittent wiper (2/4) 204 Relay, tailgate intermittent wiper (2/16) 205-206Relay, central lock and delayed inside lighting (2/7) 207 Speed warning (2/51) or exhaust temp. sensor relay (2/15) 208 Relay, heated rear window and door mirrors (2/44) 210-211Relay, anti-theft alarm (2/28) 212 Relay, seat belt reminder/key warning (2/5) 213 Front fog lights, bridge (25/9) 214 Relay, heated rear seat (2/43) If the car is not equipped with a theft alarm, position 210 is bridged and 211 is unconnected. Relays Outside the Central Electrical Unit

1998 Dodge Grand Caravan Fuel Pump Relay Removal And Installation Manual

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Fuel Pump Relay 1. Remove fuel pump relay from power distribution center at driver’s side front corner of engine compartment, near the battery. Note terminal identification on fuel pump relay. See Fig. 6 . 2. To check fuel pump relay resistance, use ohmmeter and check resistance between terminals No. 85 and 86 on fuel pump relay. Replace fuel pump relay if resistance is not 70-80 ohms. 3. To check fuel pump relay operation, connect ohmmeter between terminals No. 30 and 87A on fuel pump relay. See Fig. 6 . Ohmmeter should indicate continuity between terminals No. 30 and 87A on fuel pump relay. 4. Connect ohmmeter between terminals No. 30 and 87 on fuel pump relay. See Fig. 6 . Ohmmeter should indicate no continuity between terminals No. 30 and 87 on fuel pump relay. 5. Connect 16-gauge jumper wire between negative battery terminal and terminal No. 85 on fuel pump relay. Connect 16-gauge jumper wire between positive battery terminal and terminal No. 86 on fuel pump relay. 6. Fuel pump relay should now be energized. No continuity should now exist between terminals No. 30 and 87A on fuel pump relay. Continuity should now exist between terminals No. 30 and 87 on fuel pump relay. Disconnect jumper wires. Replace fuel pump relay if defective. 7. If fuel pump relay or wiring circuit failure exists, a Diagnostic Trouble Code (DTC) will be stored in Powertrain Control Module (PCM). See appropriate G – TESTS W/CODES article. Fig. 6: Identifying ASD Relay & Fuel Pump Relay Terminals Courtesy of CHRYSLER CORP.

1993 Ford Escort CIRCUIT TEST J – FUEL PUMP CIRCUIT (RELAY AND INERTIA SWITCH)

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resistance between test pin No. 22 and test pins No. 40 and 60. If resistance is less than 10,000 ohms, repair short circuit and repeat QUICK TEST. If resistance is 10,000 ohms or more, go to step 5). 5)Check Fuel Pump Circuit Continuity Turn ignition off. Leave fuel pump relay and PCM disconnected. Measure resistance between FUEL PUMP circuit at fuel pump relay wiring harness connector and test pin No. 22 at breakout box. If resistance is less than 5 ohms, replace PCM and repeat QUICK TEST. If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST. 10)Code 95/542 A KOEO Code 95/542 indicates one of the following conditions: Engine Starts: * Fuel pump secondary circuit shorted to power. * Fuel pump relay contacts always closed. * Open FPM circuit between PCM and junction to POWER-TO-PUMP circuit. * Left/front HO2S short to power (dual HO2S applications). * Faulty PCM. No Start: * IFS switch circuit open or not reset. * Open circuit in or between PCM and fuel pump. * Faulty ground connection at fuel pump. * Faulty fuel pump. If engine starts, go to step 11). If engine does not start, go to step 15). 11)Check Fuel Pump Operation Turn ignition on. Wait 5 seconds. Listen for fuel pump operation. If fuel pump is off, go to step 13). If fuel pump is on, go to step 12). 12)Check For Fuel Pump Relay Always Closed Turn ignition off. Disconnect fuel pump relay. Turn ignition on. If fuel pump is off with relay disconnected, replace fuel pump relay and repeat QUICK TEST. If fuel pump is on with relay disconnected, repair short to power in POWER-TO-PUMP or FPM circuit. (For models with relay block, also check fuel pump prime plug circuit). Repeat QUICK TEST. 13)Check Continuity Of Fuel Pump Monitor (FPM) Circuit Turn ignition off. Disconnect PCM 60-pin connector. Inspect and repair any damaged terminals. Install EEC-IV Breakout Box (T83L-50-EEC-IV) , leaving PCM disconnected. Disconnect fuel pump relay. Measure resistance between test pin No. 8 (No. 19 on Escort, and Tracer) at breakout box and POWER-TO-PUMP circuit at fuel pump relay wiring harness connector. If resistance is less than 5 ohms, go to step 25) (dual HO2S) or replace PCM and repeat QUICK TEST (single HO2S). If resistance is 5 ohms or more, repair open circuit and repeat QUICK TEST

1998 Acura 3.5RL FUEL PUMP RELAY (3.5RL) INSTALLATION MANUAL

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Fuel pump relay is located in the front of the trunk. Turn ignition switch to START position. If engine starts, go to next step. If engine does not start, go to FUEL PUMP RESISTOR (3.5RL) . 2. Turn engine off and ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is present, go to next step. If battery voltage is not present, go to step 4). 3. Start engine and run at 3000 RPM with no loads and transmission in Park or Neutral, until radiator fan comes on. Allow engine to idle for at least one minute. Turn engine off. Disconnect vacuum hose No. 21 from vacuum manifold. Apply 8-12 in. Hg (27-40 kPa) vacuum to Manifold Absolute Pressure (MAP) sensor. Start engine and run at 6500 RPM with no loads and transmission in Park or Neutral. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If less than one volt is present, fuel pump relay circuit is okay. If one volt or more is present, substitute a known good PCM, then recheck. If symptom or indication goes away, replace original PCM. 4. Turn ignition off. Disconnect PCM 26-pin and 12-pin connectors. Disconnect fuel pump relay 4-pin connector. Using a fused jumper wire, connect fuel pump relay connector terminals No. 2 (Red/White wire) and No. 4 (Green wire). Turn ignition on. Measure voltage between ground and PCM 12-pin connector terminal No. 4 (Green wire). If battery voltage is not present, go to next step. If battery voltage is present, replace fuel pump relay. 5. Remove jumper wire. Measure voltage between ground and fuel pump relay 4-pin connector terminal No. 2 (Red/White wire). If battery voltage is present, repair open or short in Green wire between PCM and fuel pump relay. If battery voltage is not present, repair open in Red/White wire between fuel pump relay and FUEL PUMP fuse No. 22 (20-amp), located in underdash fuse/relay box. FUEL PUMP RESISTOR (3.5RL) 1. Fuel pump resistor is located in the left corner of the trunk. Disconnect fuel pump resistor 2-pin connector. Turn ignition on and measure voltage between ground and fuel pump resistor connector terminal No. 2 (Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, go to next step. If battery voltage is not present as specified, check PGM-FI relay. See PGM- FI MAIN RELAY . 2. Turn ignition off. Using a jumper wire, connect fuel pump resistor connector terminals No. 1 (Black/Yellow wire) and No. 2 (Yellow wire). Turn ignition switch to START position. If engine does not start, go to next step. If engine starts, replace fuel pump resistor. 3. Turn ignition off. Disconnect fuel unit sub-harness Gray, 10-pin connector located in front of trunk, above fuel pump access panel, next to Gray, 20-pin connector. Turn ignition on and measure voltage between ground and sub-harness connector terminal No. 7 (Black/Yellow wire) within 2 seconds. If battery voltage is present for 2 seconds after ignition is turned on, check fuel pump. If battery voltage is present as specified, repair open in Black/Yellow wire between fuel pump resistor and fuel pump

1994 Ford Thunderbird LX FUSES AND CIRCUIT BREAKERS MANUAL

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2 – 6-Amp Circuit Breaker Windshield Wiper & Washer Pump, Interval Wiper 3 – Not Used 4 – 15 Amp Taillights, License & Parking Lights, Side Marker & Coach Lights, Cluster Illumination Lights, Radio & Clock Illuminator, A/C-Heater Illumination 5 – 15 Amp Turn Signal & Back-Up Lights, Keyless Entry Illumination, Day/Night Mirror, Turbo Overboost Buzzer 6 – 20 Amp Heated Back Light Control, Deck Lid Release, Electronic Chime Module, Lights Outage & Clock Display, Cornering & Rear Reading Lights, Tripminder, Illuminated Entry, Anti-Theft Module, Radio & Cluster Illumination 7 – 15 Amp Foglights (Turbo Only) 8 – 15 Amp Courtesy & Glove Box Lights, Key Warning Buzzer, Illuminated Entry Module, Remote Electric Mirrors, Electronic Radio & Cluster Memories, Anti-Theft Relay & Clock 9 – 30 Amp A/C-Heater Blower Motor 10 – 20 Amp Horn, Cigarette Lighter, Flash-To-Pass Feature, Fuel Filler Door, Speed Control 11 – 20 Amp Radio, Power Antenna, Sound Amplifier 12 – 20-Amp Circuit Breaker Power Seat & Door Locks, Keyless Entry, Fuel Filler Door Lock 13 – 5 Amp Instrument Cluster, Radio, Climate Control, Instrument Panel Illumination 14 – 20-Amp Circuit Breaker Power Windows, Power Moon Roof 15 – 10 Amp Taillights, Parking Lights, License & Coach Lights 16 – 4 Amp EATC Memory, Horn, Cigarette Lighter 17 – 15 Amp Electronic Cluster Tripminder, Fuel Gauge, A/C Clutch, Speed Control Module, Graphic Warning Module 18 – 10 Amp Warning Indicator Lights, Auto Light System, Electronic Chimes, Low Washer Fluid Light, Low Fuel Module, Throttle Solenoid Positioner, Low Oil Relay, Tachometer, Flash-To-Pass Relay