Description
The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors are a kind of potentiometer which transform the accelerator pedal position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors sends opening and closing speed of the accelerator pedal and feed the voltage signals to the ECM. The ECM judges the current opening angle of the accelerator pedal from these signals and controls the throttle control motor based on these signals.
Idle position of the accelerator pedal is determined by the ECM receiving the signal from the accelerator pedal position sensor. The ECM uses this signal for engine operations such as fuel cut.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
Regarding Wiring Diagram information
1.CHECK GROUND CONNECTION
2.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
3.CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-II
4.CHECK SENSOR POWER SUPPLY CIRCUIT
Check harness for short to power and short to ground, between the following terminals.
5.CHECK COMPONENTS
Check the following.
6.CHECK APP SENSOR 2 GROUND CIRCUIT FOR OPEN AND SHORT
7.CHECK APP SENSOR 2 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
8.CHECK APP SENSOR
9.REPLACE ACCELERATOR PEDAL ASSEMBLY
10.CHECK INTERMITTENT INCIDENT
Component Inspection
1.CHECK ACCELERATOR PEDAL POSITION SENSOR
2.REPLACE ACCELERATOR PEDAL ASSEMBLY
Special Repair Requirement
1.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING
2.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
3.PERFORM IDLE AIR VOLUME LEARNING
Main line between DLC and HVAC circuit
Diagnosis Procedure
1.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Disconnect the following harness connectors.
ECM
A/C auto amp.
Check the continuity between the data link connector and the A/C ...
BSW system limitations
WARNING
Listed below are the system limitations for
the BSW system. Failure to operate the
vehicle in accordance with these system
limitations could result in serious injury or
death.
The BSW system cannot detect all vehicles
under all conditions.
The radar sensors may not be able to
detect ...
Diagnosis system (IPDM E/R)
Diagnosis Description
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following
systems to check their operation.
Oil pressure warning lamp
Front wiper (LO, HI)
Parking lamps
Side marker lamps
License plate lamps
Tail lamps
Front f ...