10180356-10180349-10180383-10180390-10180363-10180376

COMPONENT LOCATION

GENERAL DESCRIPTION

The Electronic Throttle Control(ETC) system is made of the components throttle body, Throttle Position Sensor(TPS)1＆2 and Accelerator Position Sensor(APS) 1＆2. The throttle body contains the actuator, the throttle plate and the throttle position sensor (potentiometer), which are integrated in one housing. The actuator consists of a DC motor with a two-stage gear. The opening angle of the throttle valve is detected by the throttle position sensor which is mounted on the throttle body. And it provides feedback to the PCM to control the throttle motor in order to control the throttle valve opening angle properly in response to the driving condition.

DTC DESCRIPTION

If power management mode is recognized under detecting condition, PCM sets P1295. And MIL(Malfunction Indication Lamp) turns on.

DTC DETECTING CONDITION

Item	Detecting Condition	Possible cause
DTC Strategy	● This code detects if the system is in Power Management Mode	● Faulty ETC Items(TPS or ETC motor etc) ● TPS Malfunction + MAFS Malfunction ● MAP Malfunction + TPS Malfunction ● Faulty PCM
EnableConditions	● Ignition On
Threshold value	● Power Management Mode is active
DiagnosisTime	● -
MIL On Condition	● 1 Driving Cycle

[Tip 1]

If Main relay has a fault(ex. Open) under engine running, the DTCs,P0638/P0685/P1295/P2106, can happen at the same time.

[Tip 2]

If P1295 and P2104 occur at the same time, first check APS and ETC items(TPS or ETC motor etc).

[Tip 3]

If P1295 and P2106 occur at the same time, first check ETC items(TPS or ETC motor etc).

※ DTC Name

P0638 Throttle Actuator Control Range/Performance(Bank 1)

P0685 PCM/PCM Power Relay Control Circuit /Open

P2104 Throttle Actuator Control System - Forced Idle

P2106 Throttle Actuator Control System - Forced Limited Power

MONITOR SCANTOOL DATA

Connect scantool to DLC(Data Link Connector)

IG "ON" ＆ Monitor that any different DTC(Diagnostic Trouble Code) is existed.

(There will be at least one more DTC which causes this DTC P1295 to retrieve )

If any of the DTCs listed above are stored, repair those DTCs first, the perform ETS initialization before troubleshooting P1295.

Is the same DTC occurred ?

▶Substitute with a known-good PCM and check for proper operation. If the problem is corrected,replace PCM and then go to "Verification of Vehicle Repair" procedure.

note

There is a memory reset function on scantool that can erase optional parts automaticallydetected and memorized by PCM.

Before or after testing PCM on the vehicle, use this function before reusing the PCM

▶ Go to "Verification of Vehicle Repair" procedure.

※ Procedure of ETS Initialization

1. Erase the trouble codes on PCM

2. Turn the ignition key off and keep this condition until the main relay is turned off.(10 sec.)

3. Turn ignition key on more than 1second to record the throttle motor position on the EEPROM

VERIFICATION OF VEHICLE REPAIR

After a repair, it is essential to verify that the fault has been corrected.

Connect scantool and select "DTC" button.

Press "DTC Status" button and confirm that "DTC Readiness Flag" indicates "Completed". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions

Read "DTC Status" parameter

Is parameter displayed "History(Not Present) fault"?

▶ System performing to specification at this time. Clear the DTC

▶ Go to the applicable troubleshooting procedure.