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Idle Air Control Valve

For trouble shooting procedures, see following articles:

On MDX, RSX, 3.2CL and 3.2TL, see DTC P1519: MALFUNCTION IN IAC VALVE CIRCUIT under DIAGNOSTIC TESTS in appropriate SELF-DIAGNOSTICS article.
On 3.5RL, see DTC P1508: IDLE AIR CONTROL VALVE CIRCUIT under DIAGNOSTIC TESTS in SELF-DIAGNOSTICS - 3.5RL article.