Intake Manifold Runner Control Valve, Checking

Special tools and workshop equipment required 

• Multimeter.
• Wiring diagram.

Test requirements 

• Fuse -SA5- OK.
• The Secondary Air Injection (AIR) Pump Relay -J299- OK.
• The parking brake engaged.
• The battery voltage at least 12.5 V.
• The selector lever of automatic transmission in position "P" or "N".
• All electrical consumers switched off (radiator fan must NOT run during test).
• A/C switched OFF.
• The fuel tank at least ¹ /₄ filled.
• The ignition switched OFF.

Test procedure 

-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .

Start diagnosis 

-- Remove the engine covers. Refer to the appropriate Service Information.

Fig 1: Engine Cover -1- And -2-

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the Intake Manifold Runner Control (IMRC) Valve -N316- electrical harness connector. -2-

Fig 2: Installed Location: Secondary Air Injection Solenoid Valve And Intake Manifold Runner Control (IMRC) Valve -N316-

Courtesy of AUDI OF AMERICA, LLC

Checking internal resistance 

-- Using a Multimeter, check the Intake Manifold Runner Control (IMRC) Valve -N316- terminals 1 to 2 for resistance.

Specified value: 25 [+/-] 10 Ω.

If the specified value was Not obtained:

-- Replace the Intake Manifold Runner Control (IMRC) Valve -N316-. Refer to the appropriate Service Information.

-- Go to Final procedures.

If the specified value was obtained:

Switch the ignition ON.

-- Using a Multimeter, check the Intake Manifold Runner Control (IMRC) Valve -N316- electrical harness connector terminal 2 to ground (GND) for voltage.

Specified value: battery voltage.

-- Switch the ignition OFF.

If the specified value was Not obtained:

-- Check the wiring from the Intake Manifold Runner Control (IMRC) Valve -N316- electrical harness connector terminal 2 to fuse SA7 in fuse panel A.

-- Check the wiring connection for an open or short circuit.

-- Check the wiring connection for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection and replace any open fuses

-- Go to Final procedures.

If the specified value was obtained:

-- Remove the Engine Control Module -J623-. Refer to the appropriate Service Information.

-- Using a Multimeter, check the Intake Manifold Runner Control (IMRC) Valve -N316- electrical harness connector terminal 1 to the Engine Control Module -J623- electrical harness connector.

Specified value: 1.5 Ω Max.

If the specified value was Not obtained:

-- Check the wiring for a open circuit.

-- Check the electrical harness connector for damage, corrosion, loose or broken terminals.

-- If necessary, repair the faulty wiring connection.

-- Go to Final procedures.

If the specified value was obtained:

-- Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .

-- Perform a road test to verify symptoms.

If the DTC does not return:

Generate readiness code. Refer to READINESS CODE .

If the DTC Does return and no malfunction is detected in the wiring and the voltage supply was OK:

-- Replace the Engine Control Module -J623-. Refer to the appropriate Service Information.

Final procedures 

-- Reinstall the engine cover with air filter, if necessary. Refer to the appropriate Service Information.

-- After the repair work, the following work steps must be performed in the following sequence:

1. Check the DTC memory. Refer to DIAGNOSTIC MODE 03 - READ DTC MEMORY .
2. If necessary, erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
3. If the DTC memory was erased, generate readiness code. Refer to READINESS CODE .