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ON-BOARD DIAGNOSTIC [ENGINE CONTROL SYSTEM (ZM)] 01–02A–78 End Of Sie DTC P0452 [ZM] A3U010201086W22 8 VERIFY MONITORING CONDITION FOR • Turn ignition key to ON (Engine OFF). • Verify that following conditions are met. start): –10—32.5 °°°° C {14.0—90.5 °°°° F} — Barometric pressure: Above 72.2 kPa {542 mmHg, 21.3 inHg} — Vehicle: 39.5—105.5 km/h {24.5—65.4 mph} — Load: 9—65% °°°° C {14— 140 °°°° F} • Is there any condition that is out of Yes Take corrective action (e.g. cool down engine), then repeat this step. Note • Readings need to be in the indicated ranges to No Correct condition, then go to next step. 9 MONITOR EVAP SYSTEM BY DRIVE MODE 4 • Make sure to reconnect all disconnected • Clear DTC from memory using WDS or • Run OBD-II Drive Mode 4. • Stop vehicle and access ON BOARD SYSTEM • Has EVAPORATIVE PURGE SYSTEM been Yes Go to next step. No Go back to Step 8. 10 VERIFY TROUBLESHOOTING OF DTC P0451 • Turn ignition key to ON (Engine OFF). • Is pending code of same DTC present? Yes Replace PCM, then go to next step. No Go to next step. 11 VERIFY AFTER REPAIR PROCEDURE • Perform “After Repair Procedure”. • Is there any DTC present? Yes Go to applicable DTC inspection. (See 01–02A–15 DTC TABLE [ZM].) No Troubleshooting completed. STEP INSPECTION ACTION DTC P0452 Fuel tank pressure sensor circuit low input DETECTION CONDITION • PCM monitors input voltage from fuel tank pressure sensor when monitoring condition is met. If PCM MONITORING CONDITION — Engine coolant temperature is below 80 °°°° C {176 °°°° F}. Diagnostic support note • This is a continuous CCM monitor (CCM). • MIL illuminates if PCM detects the above malfunction condition in two consecutive drive cycles. • PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle. • FREEZE FRAME DATA is available. • DTC is stored in PCM memory. POSSIBLE CAUSE • Fuel tank pressure sensor malfunction • Connector or terminal malfunction • Short to ground in wiring harness between fuel tank pressure sensor terminal B and PCM terminal 62 • Open circuit in wiring harness between fuel tank pressure sensor terminal C and PCM terminal 90 • PCM malfunction 1712-1U-01G(01-02A).fm 78 ページ 2001年6月29日 金曜日 午後2時20分 |