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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSSUBARU2002LEGACY GT WAGON AWD F4-2.5L SOHCREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSDTC 45TRANSMISSION CONTROL SYSTEMS
2002 Subaru Legacy GT Wagon AWD F4-2.5L SOHC
Transmission Control Systems
2002 Subaru Legacy GT Wagon AWD F4-2.5L SOHCSECTION Transmission Control Systems
This information has been updated by TSB 18-69-01 dated 07/01/2001
DTC 45 INTAKE MANIFOLD PRESSURE SIGNAL
DIAGNOSIS: Input signal circuit of TCM from ECM is open or shorted.
TROUBLE SYMPTOM: Excessive shift shock.
WIRING DIAGRAM:
Test Steps 1 and 2
Ν΅οΏ½:
Test Steps 3 through 7
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.