Failed intake plenum switchover valve actuator or solenoid, often due to heat and carbon buildup.; Damaged or disconnected vacuum hose between the intake plenum and the switchover valve actuator.; Corroded, loose, or damaged electrical connector at the switchover valve solenoid.; Broken or shorted wiring in the switchover valve control circuit, often near the intake manifold.; Carbon buildup or mechanical binding on the intake plenum flap shaft, preventing full travel.; Faulty powertrain control module (PCM) driver, though this is rare and should be diagnosed last.; Intake manifold vacuum leak elsewhere that affects the valve's operation and triggers a circuit rationality fault.

DTC codes / Chrysler codes / P1245

P1245 · ChryslerIntake Plenum Switchover Valve

Q: What does code P1245 mean?

Intake Plenum Switchover Valve. P1245 on Chrysler vehicles indicates that the powertrain control module (PCM) has detected an electrical fault in the intake plenum switchover valve circuit, which controls a flap that alters intake runner length for better low-end torque and high-rpm power. The PCM monitors the valve's command circuit and expects a corresponding voltage change when actuating the valve; when the circuit stays open, shorted, or out of range, it sets this code and may disable the valve's operation.

P1245 on Chrysler vehicles indicates that the powertrain control module (PCM) has detected an electrical fault in the intake plenum switchover valve circuit, which controls a flap that alters intake runner length for better low-end torque and high-rpm power. The PCM monitors the valve's command circuit and expects a corresponding voltage change when actuating the valve; when the circuit stays open, shorted, or out of range, it sets this code and may disable the valve's operation.

SystemPowertrain

Code typeChrysler specific

SeverityLow

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Symptoms you may notice

Illumination of the check engine light, often with no other noticeable symptoms.
Slight hesitation or stumble during light acceleration at lower engine speeds.
Reduced engine power or sluggishness at higher RPMs due to the intake runners not switching.
Occasional rough idle or unstable idle quality when the valve is stuck open or closed.
A faint clicking or tapping noise from the intake area if the valve is commanded but mechanically stuck.
Poor fuel economy in some cases because the PCM may default to a less efficient intake tuning strategy.

Common causes, most likely first

Failed intake plenum switchover valve actuator or solenoid, often due to heat and carbon buildup.
Damaged or disconnected vacuum hose between the intake plenum and the switchover valve actuator.
Corroded, loose, or damaged electrical connector at the switchover valve solenoid.
Broken or shorted wiring in the switchover valve control circuit, often near the intake manifold.
Carbon buildup or mechanical binding on the intake plenum flap shaft, preventing full travel.
Faulty powertrain control module (PCM) driver, though this is rare and should be diagnosed last.
Intake manifold vacuum leak elsewhere that affects the valve's operation and triggers a circuit rationality fault.

How to diagnose and fix it

Inspect the vacuum hoses and electrical connector at the intake plenum switchover valve for cracks, corrosion, or looseness.
Use a scan tool to command the switchover valve on and off and listen for a click or observe actuator movement.
Measure resistance and voltage on the valve solenoid circuit to check for open or shorted wiring.
Apply vacuum directly to the actuator to verify the flap moves freely and holds vacuum without leaking.
Clean or replace the intake plenum switchover valve assembly if it fails electrical or mechanical tests.
Clear the code and perform a road test to confirm the repair and ensure the monitor runs to completion.
If the code persists after all circuit and component checks, diagnose the PCM driver circuit before replacing the module.

What most technicians miss on P1245

A stuck-open or stuck-closed intake plenum flap often causes no driveability complaint, so many owners ignore the code until an emissions test fails.
The switchover valve is frequently misdiagnosed as a bad intake manifold gasket because a vacuum leak can mimic the same lean-condition symptoms and set P1245 as a secondary code.
On some Chrysler engines, the valve is vacuum-operated and the solenoid is remote-mounted, so a failed solenoid can be replaced without removing the intake plenum.
Carbon buildup on the flap shaft is a common cause of mechanical binding that electrical tests alone will not reveal, so always verify actual flap movement.
A weak or failing engine vacuum source can prevent the valve from actuating even when the solenoid and wiring test good, so check manifold vacuum first.

Can I keep driving with P1245?

The vehicle remains safe to drive with P1245 because the fault mainly affects intake tuning and emissions, not immediate safety. Avoid heavy throttle or towing until repaired, as the engine may feel less responsive at higher RPMs, and address the code promptly to prevent secondary emissions-related faults.

Tools that help

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Guidance is general and written for Chrysler vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.