Result

Results

Suspected Trouble Areas

Proceed To

Fixed at low (1.6 V or less) even when AIR system ON (Air pump ON, ASV OPEN)

• Short between air pump or air switching valve command signal circuit and body ground

• Open in air pump command signal circuit (between ECM and AID)

• Open in ASV command signal circuit (between ECM and AID)

• Open in AID ground circuit (between AID and body ground)

• Diagnostic signal circuit ground short

• ECM

A

Fixed at high (12 V or more) even when AIR system OFF (Air pump OFF, ASV CLOSE)

• Open in diagnostic signal circuit (ECM - AID)

• Short between +B and diagnostic signal circuits (ECM - AID)

• Open in AID power source circuit

• ECM

Fluctuating (duty signal other than 20, 40 and 80 %)

• Open in AID ground circuit (between AID and body ground)

C

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