R32 4Motion V6-3.2L (CBRA) (2008)
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Using a Multimeter, check the Exhaust Flap Valve 1 N321 electrical harness connector terminal 1 to ground (GND) for voltage.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the wiring from the Exhaust Flap Valve 1 N321 electrical harness connector terminal 1 to the Power Supply Relay (terminal 30, B+) J317
terminal 87 for an open circuit or a short circuit to Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
Checking wiring
If the specified value was not obtained:
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Engine Control Module (ECM) J623.
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Using a multimeter, check the Exhaust Flap Valve 1 N321 electrical harness connector terminal 2 to the Engine Control Module (ECM) J623
electrical harness connector T121 terminal 121 for resistance.
Exhaust Flap Valve
Engine Control Module (ECM) J623
1 N321 electrical harness
electrical harness connector T121
connector terminal
terminal or test box socket
2
121
Specified value: 1.5 ohms Max.
If the specification was not obtained:
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Check the wiring for an open circuit, a short circuit to each other, Battery (+), or Ground (GND).
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Check the electrical harness connector for damage, corrosion, loose or broken terminals.
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If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring:
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Erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 04 - Erase DTC Memory
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Perform a road test to verify repair.
If the DTC does not return:
Repair complete, Generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive
Cycles and Readiness Codes
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End diagnosis.
If the DTC returns and no malfunction is found in the wiring and the voltage supply was OK:
