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A GO TO STEP 5 B GO TO STEP 6 4. CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM) (a) Disconnect the canister pump module connector. (b) Measure the resistance according to the value(s) in the table below. Standard Resistance: TESTER CONNECTION CONDITION SPECIFIED CONDITION R12-8 (SGND) - Body ground Always 100 Ω or less (c) Turn the ignition switch to ON. (d) Measure the voltage according to the value(s) in the table below. Standard Voltage: TESTER CONNECTION SWITCH CONDITION SPECIFIED CONDITION R12-6 (VCC) - Body ground Ignition switch ON 4.5 to 5.5 V R12-7 (VOUT) - Body ground Ignition switch ON 4.5 to 5.5 V Result RESULT SUSPECTED TROUBLE AREA PROCEED TO Voltage and resistance within standard ranges Open in canister pressure sensor circuit A Voltage and resistance outside standard ranges Open in wire harness/connector (ECM - Canister pressure sensor) B B GO TO STEP 6 1UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0451-P0453;... |