Checking Electrical Components

From E34 Addicts
Jump to: navigation, search

Contents

Overview

List of electrical Ohm/V/VDC values for common components for quick troubleshooting.

Internal Sensors

  • Cam shaft: 1280 +/- 10% ohm
  • Crank shaft: Terminal 1-2 500 ohm

Coolant + Air Temperature Sensors

  • 14F: 7-11 ohm
  • 78F: 2.1-2.9 ohm

Throttle Position Sensor (TPS)

  • Ignition on: 1 and ground = 5 VDC
  • Ignition off 1-3: 4.0K ohm; full throttle 1-2: 1.0-4.0K ohm

Idle Valve Control (ICV)

  • Terminal 1-2: 12 +/- 2 ohm
  • Terminal 2-3: 12 +/- 2 ohm
  • Terminal 1-3: 23 +/- 4 ohm

Battery

  • Ground + Live: 12.2V+ (ignition off)
Personal tools