Perform Active Test Using Intelligent Tester Vacuum Pump Alone

Wire Harness Side:

MTRB

Canister Pump Module Connector

Turn the ignition switch OFF.

Disconnect the S3 canister pump module connector.

Turn the ignition switch ON.

On the intelligent tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.

Measure the voltage between MTRB terminal 1 of the canister pump module connector and the body ground when the leak detection pump is turned ON and OFF using the tester.

Result

Test Results

Suspected Trouble Areas

Proceed To

Below 3 V when OFF 9 to 14 V when ON

1. Wire harness between leak detection pump and body ground

2. Leak detection pump

A

Below 3 V when OFF and ON

1. Wire harness between leak detection pump and ECM

2. ECM

Go to step 24

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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