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DTC CODE DTC DETECTION CONDITION TROUBLE AREA Open or ground short in VPA2 circuit ECM P2128 Conditions (a) and (b) continue for 2.0 seconds or more (1 trip detection logic): (a) VPA2 4.8 V or more (b) VPA between 0.4 V and 3.45 V APP sensor Open in EPA2 circuit ECM P2138 Condition (a) or (b) continues for 2.0 seconds or more (1 trip detection logic): (a) Difference between VPA and VPA2 0.02 V or less (b) VPA 0.4 V or less and VPA2 1.2 V or less Short between VPA and VPA2 circuits APP sensor ECM HINT: TROUBLE AREA ACCEL SENSOR OUT NO. 1 WHEN AP RELEASED ACCEL SENSOR OUT NO. 2 WHEN AP RELEASED ACCEL SENSOR OUT NO. 1 WHEN AP DEPRESSED ACCEL SENSOR OUT NO. 2 WHEN AP DEPRESSED VCP circuit open 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V 0 to 0.2 V Open or ground short in VPA circuit 0 to 0.2 V 1.2 to 2.0 V 0 to 0.2 V 3.4 to 4.75 V Open or ground short in VPA2 circuit 0.5 to 1.1 V 0 to 0.2 V 2.6 to 4.5 V 0 to 0.2 V EPA circuit open 4.5 to 4.98 V 4.5 to 4.98 V 4.5 to 4.98 V 4.5 to 4.98 V Normal condition 0.5 to 1.1 V 1.2 to 2.0 V 2.6 to 4.5 V 3.4 to 4.7 V HINT: Accelerator pedal positions are expressed as voltages. AP stands for Accelerator Pedal. MONITOR DESCRIPTION malfunction in the APP sensor. The ECM then illuminates the MIL and sets a DTC. Example: If the malfunction is not repaired successfully, a DTC is set 2 seconds after the engine is next started. MONITOR STRATEGY 3UR-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: P2120,P2122... |