Saab P1640: Main Relay Circuit No Voltage to Control Module
Is your scanner showing Saab P1640?
No worries. We'll show you what it means and how to deal with it.
Saab P1640: Main Relay Circuit No Voltage to Control Module
OVERVIEWWhat Does The Saab P1640 Code Mean?
Control module detects no voltage.
What Are The Potential Causes Of The Saab P1640 Code?
- Check input signal for Control module
- Check for poor contact in Control module connector
- Check harness between relay and Control module
- Faulty Control module
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
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Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
