Camry Canister Vacuum Pump Module

Go to step 34

Go to step 31

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (VACUUM PUMP (ALONE))

Turn the ignition switch off.

Disconnect the N17 canister pump module connector. Turn the ignition switch to the ON position. 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 body ground when the leak detection pump is turned ON and OFF using the tester.

Wire Harness Side:

Result

Test Result

Suspected Trouble Area

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

CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - BODY GROUND)

(a) Turn the ignition switch off.

(b) Disconnect the N17 canister pump module connector.

(c) Measure the resistance between the MGND terminal of the canister pump module connector and body ground.

Result

Test Result

Suspected Trouble Area

Proceed to

Below 1 Q

Leak detection pump

A

10 kQ or higher

Wire harness between canister pump module and body ground

B

(d) Reconnect the canister pump module connector.

Go to step 29

Go to step 31

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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