The Manifold Absolute Pressure(MAP) sensor measures the change of pressure in the intake manifold. The pressure of intake manifold is changed as variable engine running condition and converted into voltage and then it is monitored by the ECM.
ECM sets DTC P0106 if the ECM detects signal voltage out of its proper operating performance rage.
Item
Detecting Condition
Possible cause
Monitoring Strategy
? Rationality check
? Poor connection of MAP sensor
? Faulty MAP sensor
? Faulty TPS
? Dirty air cleaner
? Leakage in intake system
? Contact resistance in connections.
? Faulty ECM
Threshold value
? Intake manifold pressure : > Max. Threshold or < Min. Threshold f(Eng.speed, TPS)
Enable Conditions
? No TPS error detected
Diagnostic Time
? 5 sec
Fail Safe
? MAP value is substituted by MAP’s model value.
? TPS limp home mode.
? Engine speed limitation.
? Minimum operation of EVAP control.
If any codes relating to TPS are present,do all repairs associated with before proceeding this troubleshooting procedure.
Normal Parameter
Idle
Approx. 3000 rpm
Signal Voltage
1.14 ± 0.4V
4 ~ 5V
When checking TPS wave form,it is strongly recommended to examine wave form with MAP sensor wave form..
Peride ? is the voltage of MAP in idling and 0.8~1.2 V,and there must be a little fluctuation in wave form..
In case there is no fluctuation
Possible cause : Deteriorated MAP sensor or some foreign material in MAP sensor..
The voltage in Periode ? is 0.3~1.0V in average.
Periode ? is in W.O.T and the voltage there is 4.3 V,and MAP sensor voltage is about 4.3 V.