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.
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HOMESERVICE MANUALSMERCURY2009MILAN AWD L4-2.3LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSHH - EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM)
2009 Mercury Milan AWD L4-2.3L
HH - Exhaust Gas Recirculation System Module (ESM)
2009 Mercury Milan AWD L4-2.3LSECTION HH - Exhaust Gas Recirculation System Module (ESM)
PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM)
EGR System Module And Powertrain Control Module Connector:
HH1-HH2:
HH3-HH6:
HH7-HH10:
HH11-HH13:
HH14-HH18:
HH19-HH20:
HH21-HH23:
HH24-HH27:
HH28-HH29:
RENDER: 1.0x
NO RELATED
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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.