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P0708 Transmission Range Sensor Circuit High Input

AutoHex Online Help: Hyundai i20(PB) 2010
Component Location
General Description

The Transaxle Range Switch sends the shift lever position information to the TCM using a 12V (battery voltage) signal. When the shift lever is in the D (Drive) position the output signal of Tansaxle Range Switch is 12V and in all other positions the voltage is 0V. The TCM judges the shift lever position by reading all signals, for the Transaxle Range Switch, simultaneously.



DTC Description

The TCM sets this code when the Transaxle Range Switch outputs multiple signals for more than 10 seconds.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Electrical Check

Open or short in TRANSAXLE RANGE SWITCH

Faulty Shift cable adjustment

Faulty Inhibitor switch and Manual control lever position adjustment

Faulty TRANSAXLE RANGE SWITCH

Faulty PCM

Enable Conditions

Ignition key input voltage = 10V

Threshold Value

Multiple signal

Diagnostic Time

More than 10sec

Fail Safe

Recognition as previous signal

- When signal is input "D" and "N" at the same time,TCM regards it as "N" RANGE.

- After PCM/TCM Reset,If the if the PCM/TCM detects multiple signal or no signal, then it holds the 3rd gear position.

Diagnostic Circuit Diagram
Signal Waveform