The engine temperature from the engine control module is implausible. Short circuit to ground (P0116)

The engine temperature from the engine control module is implausible. Short circuit to
ground (P0116)
The engine temperature from the engine control module is implausible. Short circuit to ground (P0116)
Possible cause:
­ B11/4 (Coolant temperature sensor)
­ R48 (Two­disk thermostat heating element)
­ The cooling performance of the engine cooling system is poor.
Affected functions:
­
­
Engine diagnosis
Engine cooling
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­
Test 1: A guided test is not available at present.
Test 2: Check component B11/4 (Coolant temperature sensor).
Test 3: Check component R48 (Two­disk thermostat heating element).
Test 4: The cooling performance of the engine cooling system is poor.
1. A guided test is not available at present.
Note:A guided test is not available at present.
2. Check component B11/4 (Coolant temperature sensor).
Test 2.1: Check component B11/4 (Coolant temperature sensor) using actual value.
Test 2.2: Check signal lines on component B11/4 (Coolant temperature sensor).2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
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Test 2.3: Check internal resistance of component B11/4 (Coolant temperature sensor).
2.1. 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
2.2. 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
­ 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 test2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
2.3. 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]ohms
­ 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
3. Check component R48 (Two­disk thermostat heating element).
Test 3.1: Component R48 (Two­disk thermostat heating element) is mechanically damaged or it sticks.
Test 3.2: Test current consumption of component R48 (Two­disk thermostat heating element).
3.1. Component R48 (Two­disk thermostat heating element) is mechanically damaged or it sticks.
Test 3.1.1: R48 (Two­disk thermostat heating element) : Coolant temperature is not reached.
Test 3.1.2: R48 (Two­disk thermostat heating element) : Coolant temperature is too high.
3.1.1. R48 (Two­disk thermostat heating element) : Coolant temperature is not reached.
Warning!Communication with ECU required.
3.1.2. R48 (Two­disk thermostat heating element) : Coolant temperature is too high.
Warning!Communication with ECU required.
3.2. Test current consumption of component R48 (Two­disk thermostat heating element).
Figure legend
­
­
­
­
­
A ­ConnectionTest cable 35­pin socket box
001 ­Sockets of component N3/10 (ME­SFI [ME] control unit)
05 ­35­pin socket box
050 ­126­pin socket box
108 ­Test cable 266 589 01 63 00
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Page 3822010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
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­ N3/10 (ME­SFI [ME] control unit)
­ II 1­63ConnectionTest cable
­ III 64­126ConnectionTest cable
Warning!
­
­
Connection A of test cable 108 may NOT be connected to connection B of the 126­pin socket box (050).
Test sequence
­ Switch off ignition.
­ Connect socket box (126­pin) to component N3/10 (ME­SFI [ME] control unit).
­ Measure direct current with multimeter between sockets [F.4] 100 and [M.54] 54 of the 126­pole socket box tester.
­ Switch on ignition.
Specified value:
­ Amperage[0.6...1.2] A
Question
­
Is the measurement value OK?
YES
The measurement value is OK.End of test
NO
The measurement value is not OK.Possible cause and remedy
­ K40/4f44 (Fuse 44)
­ K40/4kM (Circuit 30z relay)
­ Check lines from component N3/10 (ME­SFI [ME] control unit) to component R48 (Two­disk thermostat heating element).
­ R48 (Two­disk thermostat heating element)
End of test2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
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4. The cooling performance of the engine cooling system is poor.
4. No further information available.