Section 5 (Tests W/Codes)
WARNING: This page is about a different car, the 1989 BMW 325is, 1989 BMW 325iX, and 1989 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Entering Self-Diagnostics
- Retrieving Codes (Approved Method)
- Retrieving Codes (Alternate Method)
- Trouble Code Diagnosis
- Testing
- * Please Read First Before Testing *
- Main Relay Control
- Voltage Supply To Control Unit
- Main Grounds
- Throttle Switches
- Fuel Pump Relay Control
- Fuel Injector Control (Injectors 1, 3 And 5)
- Fuel Injector Control (Injectors 2, 4 And 6)
- Starter Input (Terminal 50)
- Reference Sensor
- Coolant Temperature Sensor
- Idle Air Stabilizer Valve
- Air Flow Sensor
- Evaporative Emissions Purge Valve
- Cylinder Identification Sensor
- Air Conditioning On Signal
- Automatic Transmission Park/Neutral Signal
- Summary