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.
Diagnosis Procedure
- CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection M95. Refer to Ground Inspection in
"CIRCUIT INSPECTION
".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair or replace ground connection.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
- Disconnect following sensors harness connector.
- Check harness for short to power and short to ground, between the following terminals.
ECM Sensor Connector Terminal Name Connector Terminal F101 46 CKP sensor F2 1 45 Battery current sensor B10 1 F102 64 EVT control position sensor (bank 2) F19 1 CMP sensor (bank 2) F18 1 74 Mass air flow sensor (bank 1) F31 1 Mass air flow sensor (bank 2) F42 1 M107 107 Refrigerant pressure sensor E77 3 Is the inspection result normal?
YES: GO TO 3.
NO: Repair short to ground or short to power in harness or connectors.
- CHECK COMPONENTS
Check the following.
- CKP sensor (Refer to "COMPONENT INSPECTION ".)
- Mass air flow sensor (bank 1) (Refer to "COMPONENT INSPECTION ".)
- Mass air flow sensor (bank 2) (Refer to "COMPONENT INSPECTION ".)
- Refrigerant pressure sensor (Refer to "COMPONENT FUNCTION CHECK ".)
- Battery current sensor (Refer to "COMPONENT INSPECTION ".)
- Camshaft position sensor (bank 2) (PHASE) (Refer to "COMPONENT INSPECTION ".)
- EVT control position sensor (bank 2) (Refer to
"COMPONENT INSPECTION
".)
Is the inspection result normal?
YES: Perform "INTERMITTENT INCIDENT ".
NO: Replace malfunctioning component.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no 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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.