The engine temperature from the engine control module is implausible. Signal voltage is implausible. (P0116)

The engine temperature from the engine control module is implausible. Signal voltage is
implausible. (P0116)
The engine temperature from the engine control module is implausible. Signal voltage is implausible. (P0116)
Possible cause:
­ B11/4 (Coolant temperature sensor)
Affected functions:
­
­
Engine diagnosis
Engine cooling
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­
Test 1: Check component B11/4 (Coolant temperature sensor).
1. Check component B11/4 (Coolant temperature sensor).
Test 1.1: Check internal resistance of component B11/4 (Coolant temperature sensor).
Test 1.2: Check component B11/4 (Coolant temperature sensor) using actual value.
Test 1.3: Check signal lines on component B11/4 (Coolant temperature sensor).
1.1. Check internal resistance of component B11/4 (Coolant temperature sensor).
Test prerequisite
­ The actual value is not o.k.
Test sequence
­ Switch off ignition.
­ Disconnect connector at component B11/4 (Coolant temperature sensor).
­ Measure resistance with multimeter between pins ( B11/4 ) 1 and ( B11/4 ) 2
Specified values
­
­
­
Resistor(20? C): [3030...3130]ohms
Resistor(30? C]: [1950...2050]ohms
Resistor(40? C): [1275...1375]ohms2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
­ Resistor(50? C): [850...950]ohms
­ Resistor(60? C): [600...650]ohms
­ Resistor(70? C): [420...460]ohms
­ Resistor(80? C): [305...335]ohms
­ Resistor(90? C): [220...240]ohms
­ Resistor(100? C): [160...180]ohms
­ Resistor(110? C): [120...140]ohms
Question
­
Are the measurement values OK?
YES
The measurement values are OK.End of test
NO
The measurement values are not OK.Possible cause and remedy
­ B11/4 (Coolant temperature sensor)
End of test
1.2. Check component B11/4 (Coolant temperature sensor) using actual value.
Test prerequisite
­ The actual value is not o.k.
Test sequence
­ Switch on ignition.
Status of relevant actual value:
­ Coolant temperature:Warning! Communication with ECU required.
­ Coolant temperature sensor ( Signal voltage ):Warning! Communication with ECU required.
Specified values
­ Voltage[20?C]: [3.45...3.32] V
­ Voltage[30?C]: ..[2.93...2.82] V
­ Voltage[40?C]: [2.41...2.32] V
­ Voltage[50?C]: [1.93...1.86] V
­ Voltage[60?C]: [1.51...1.46] V
­ Voltage[70?C]: [1.18...1.13] V
­ Voltage[80?C]: [0.90...0.87] V
­ Voltage[90?C]: [0.70...0.67] V
­ Voltage[100?C]: [0.54...0.25] V
­ Voltage[110?C]: [0.42...0.40] V
Question
­
Are the measurement values OK?
YES
The measurement values are OK.End of test
NO
The measurement values are not OK.Possible cause and remedy
­ Line from component B11/4 (Coolant temperature sensor) to component N3/10 (ME­SFI [ME] control unit)
­ B11/4 (Coolant temperature sensor)
End of test
1.3. Check signal lines on component B11/4 (Coolant temperature sensor).
Test sequence
­ Switch on ignition.
Status of relevant actual value:
­ Coolant temperature sensor ( Signal voltage ):Warning! Communication with ECU required.
Specified value
Page 3872010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 388
­ If the connection is unplugged at component B11/4 (Coolant temperature sensor), the value is approx. 5 V.
­ Bridge pin 1 in pin 2 at the unplugged connection of component B11/4 (Coolant temperature sensor).The value is< 0.5 V.
Question
­
Is the actual value o.k.?
YES
The actual value is okay.Further possible causes of fault
­
Check internal resistance of component B11/4 (Coolant temperature sensor).
NO
The actual value is not o.k.Possible cause and remedy
­ Check lines from component B11/4 (Coolant temperature sensor) to component N3/10 (ME­SFI [ME] control unit).
End of test