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 MANUALSFORD2012EXPLORER FWD V6-3.5LREPAIR AND DIAGNOSISBODY AND FRAMEBODY CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSDIAGNOSTIC ROUTINE D
2012 Ford Explorer FWD V6-3.5L
Diagnostic Routine D
2012 Ford Explorer FWD V6-3.5LSECTION Diagnostic Routine D
Diagnostic Routine D
Diagnostic Overview
DTC U0140:87
Normal Operation and Fault Conditions
DTC Fault Trigger Conditions
Pinpoint Test
1. VERIFY THE SCAN TOOL COMMUNICATES WITH THE PCM (Powertrain Control Module)
1. Connect the scan tool.
2. Check that a vehicle session can be established using the scan tool.
Can a vehicle session be established?
2. CHECK THE BCM (Body Control Module) CONTINUOUS MEMORY DTCs (Diagnostic Trouble Codes)
1. Ignition ON.
2. Using a scan tool, perform BCM (Body Control Module) self-test.
3. Clear the DTCs (Diagnostic Trouble Codes). Repeat the BCM (Body Control Module) self-test.
Is DTC (Diagnostic Trouble Code) U0140:87 retrieved again?
3. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM THE BCM (Body Control Module) SELF-TEST
1. Check for recorded BCM (Body Control Module) DTCs (Diagnostic Trouble Codes) from the self-test.
Is DTC (Diagnostic Trouble Code) U3003:16 or DTC (Diagnostic Trouble Code) U3003:17 recorded?
4. CHECK FOR DTC (Diagnostic Trouble Code) U0140:87 SET IN OTHER MODULES
1. Ignition ON.
2. Using a scan tool, retrieve the continuous memory DTCs (Diagnostic Trouble Codes) from all modules.
Is DTC (Diagnostic Trouble Code) U0140:87 set in any other module?
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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.