Perform Active Test Using Intelligent Tester For Canister Pump Module Leak Detection Pump

(a) Connect an intelligent tester to the DLC3.

(b) Turn the ignition switch ON and turn the tester ON.

(c) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VACUUM PUMP.

(d) Measure the voltage between terminal MPMP of the ECM 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

Between 0 V and 3 V when OFF Between 9 V and 14 V when ON

ECM normal

A

Between 9 V and 14 V when OFF Between 0 V and 3 V when ON

ECM

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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