DR-1N AIS Motor Signal at Logic Module (Turbo II)

1. With diagnostic read-out tool connected to engine harness connector, digital voltmeter set to AC voltage position and system in ATM Test Mode 03, connect voltmeter between cavities 18 and 20 of red module connector.
2. If voltmeter is pulsing between 0 and 6 volts, locate and repair open circuit in wire of cavity 18 or 20 to automatic idle speed motor connector.
3. If voltmeter does not pulsate, replace logic module.
CAUTION: Before replacing the logic module check the terminals in cavities 18 and 20 of the logic module red connector to make sure they are not crushed causing a poor connection.