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.
Checking wiring and terminals
Check the DSA control module and engine control module (ECM) connectors for contact resistance and oxidation according to Contact resistance and oxidation
FENIX 5.1
- Check the cable between the DSA control module terminal 5 and engine control module (ECM) terminal 41 for an intermittent open-circuit according to Open-circuit, intermittent faults
. Check for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults
. Check for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults
.
Check that the cable is not too close to sources of interference such as electric motors, ignition cables, carphone cables etc.
- Applies to cars with automatic transmission: Check the cable between engine control module (ECM) terminal 41 and automatic transmission control module (TCM) terminal 38 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults
and for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults
.
Check that the cable is not too close to sources of interference such as electric motors, ignition cables, carphone cables etc.
EMS 2000
- Check the cable between the DSA control module terminal 5 and engine control module (ECM) terminal 36 for an intermittent open-circuit according to Open-circuit, intermittent faults
. Check for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults
. Check for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults
.
Check that the cable is not too close to sources of interference such as electric motors, ignition cables, carphone cables etc.
Other information
- To connect the breakout box for DSA, see Connecting the breakout box. DSA .
- To connect the breakout box for FENIX 5.1, see Connecting the breakout box. FENIX 5.1 .
- To connect the breakout box for EMS 2000, see Connecting the breakout box. EMS 2000 .
Use the Manual With the Right Hardware
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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.
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