Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reading Off Input And Output Signals
2009 Volvo C70 AutomaticSECTION Reading Off Input And Output Signals
This function can be used to continuously read off the values and status of the accessory electronic module (AEM) input and output signals.
The following parameters can be read off:
- power supply to the accessory electronic module (AEM)
- voltage level of the signal to the relay, engine block heater
- voltage level of alarm signals P0, P1, S0 and S1
- voltage level of the signal from tele-mute.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.