Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

KT10 - Check IMRC Solenoid Electrical Operation



- Key "ON", engine "OFF".

- Intake Manifold Runner Control System (IMRC) solenoid disconnected.

- Connect Digital Volt/Ohm Meter (DVOM) positive test lead to VPWR circuit and negative test lead to IMRC circuit at the IMRC solenoid vehicle harness connector.

- DVOM on 20 volt scale.

- While observing the DVOM, depress and release throttle several times to cycle the output.

- Does IMRC cycle 0.5 volts or greater?

Yes -- Remain in Output State test mode. Go to KT11. KT11 - Check IMRC Solenoid For Vacuum Leaks

No -- Remove jumper. Go to KT1. KT1 - Check IMRC Solenoid Resistance