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1GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM ES–239 ES (c) Turn the tester ON. ENHANCED OBD II / DTC INFO / CURRENT CODES. (e) Read DTCs. Select the following menu items: DIAGNOSIS / (g) Read the EVAP (Evaporative Emission) pressure displayed on the tester. Result B C A (a) Turn the ignition switch OFF. ECM connector and the body ground. Result (d) Reconnect the ECM connector. B A Display (DTC Output) Test Results Suspected Trouble Areas Proceed To P0451 - Canister pressure sensor C P0452 Less than 45 kPa-a (430 mmHg-a) • Wire harness/connector (ECM - Canister • Canister pressure sensor • Short in ECM circuit A P0453 More than 120 kPa-a (900 mmHg-a) • Wire harness/connector (ECM - Canister • Canister pressure sensor • Open in ECM circuit B Go to step 4 GO TO EVAP SYSTEM (See page ) 2 CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) ECM Connector PPMP E47 G035619E10 Test Results Suspected Trouble Areas Proceed To 10 Ω or less • Wire harness/connector (ECM - Canister pressure • Short in canister pressure sensor circuit A 10 k Ω or more • Wire harness/connector (ECM - Canister pressure • Short in ECM circuit B Go to step 7 |