ETC(Electronic Throttle Control Valve) is the device controlling amount of air to engine acccording to driver’s intension. Different from the existing mechanical throttle valve which is composed of accelerator pecal and connecting wire cable, ETC consists of a motor, a throttle body and a throttle position sensor. Receiving input signals from electronic accelerator pedal module, PCM lets ETC motor control throttle valve. With ETC, cruise control system works without any additional device.
If power management mode is recognized under detecting condition, PCM sets P1295. And MIL(Malfunction Indication Lamp) turns on.
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 + MAFSMalfunction ● MAP Malfunction + TPSMalfunction ● Faulty PCM |
Enable Conditions | ● Ignition On | |
Threshold value | ● Power Management Mode is active | |
Diagnosis Time | - | |
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
