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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. CAUTION: DO NOT allow ohmmeter leads to contact terminals No. 85 and 86 on fuel pump relay when fuel pump relay is energized. 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.

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Fuses Panel Locations Fuses 11A/1 To 11A/9 & 11B/1 To 11B/5 In Relay Fusebox In Engine Compartment Relays Panel Locations Other Relays 2/11 Relay engine coolant fan (FC) 2/43 Relay heated rear seat (S70/V70) 2/54 Relay coolbox (V70)
2/74 Relay heating plugs coolant (Diesel) 7/1 Bulb failure warning sensor rear 11C/1-40 Fuses 1/1 Battery 2/35 Starter motor relay 2/76 Central locking/anti theft alarm (lock/alarm) control module 3/1 Ignition switch 3/71 Gear position sensor 4/9 SRS Supplemental Restraint System Crash Sensor 4/30 ECC climate control module 5/1 Combined instrument panel 6/25 Starter motor 6/26 Generator
24/2 Connector Firewall cable harness – Engine compartment harness 24/13 Connector Dashboard harness – Engine compartment harness 24/14 Connector Left door sill harness – Engine compartment harness 24/15 14-pin connector Engine compartment harness – engine harness 24/43 8-pin connector Engine compartment harness – engine harness 24/53 26-pin connector Engine harness – AW 50-42 31/4 Engine ground point (ground terminal – battery-engine) 31/7 Ground terminal driver’s side A post 31/44 Engine compartment ground point (battery ground terminal – body)

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Relay location on the thirteen position auxiliary relay panel, above relay panel: 1 – Auxiliary Emergency Flasher Relay (404) 2 – Relay for Motor Remote Unlock Rear Lid (79) 3 – Starting Interlock Relay (53) (185) (465) 4 – Fog Light Relay (53) 5 – Control Module for Multi-function Steering Wheel (450) 6 – Control Module for Multi-function Steering Wheel (450) 7 – Daytime Running Lights Change-over Relay (173), from April 1999 8 – Daytime Running Lights Change-over Relay (173), through March 1999 9 – Dual Horn Auxiliary Relay (53) 10 – Glow Plug Relay (180) 10 – Warning Lamp Auxiliary Relay (200) 11 – Park/Neutral Position (PNP) Relay (175) 12 – Power Supply (Terminal 30, B+) Relay (109) Relay Panel: 1 – Dual Horn Relay (53) 2 – Load Reduction Relay (18) (100) 4 – Fuel Pump (FP) Relay (409) V – Wiper/Washer Intermittent Relay (192) (377) (389) VI – Wiper/Washer Intermittent Relay (192) (377) (389) NOTE Number in parentheses ( ) indicates production control number stamped on relay housing.

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Vehicle Application: 1998 BMW 528I 2.8L 2000 BMW 528IT 2.8L 2002 BMW X5 3.0L, Eng Cfg L6, Eng Des 1999 BMW 528IT 2.8L, Eng Des M52TU M54 2000 BMW 323I Sport Wagon 2.5L Customer Concern: Check engine light is illuminated in dash. Tests/Procedures: 1. Compare the actual engine temperature, as read by an infrared or contact thermometer, to the temperature shown on the scan tool. 2. If the temperatures are comparable, replace the coolant thermostat. A leaking thermostat will delay warm-up and keep the engine from coming up to proper temperature for closed loop operation. Potential Causes: Thermostat

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Lighting System (Clearance Light And Illumination Light) (LHD Model) Circuit 2 Lighting System (Clearance Light And Illumination Light) (RHD Model) Circuit 1 Lighting System (Clearance Light And Illumination Light) (RHD Model) Circuit 2 Fuse/Relay Locations: For fuse and/or relay locations refer to Starting and Charging / Power and Ground Distribution: See: Power and Ground Distribution Ground Locations: For ground locations refer to Vehicle / Locations / Harness: See: Locations\ Connector Locations: For connector locations refer to Vehicle / Locations / Connectors: See: Locations\Connectors