Manufacturer Code Charts: 3717
B1 (Oil temperature sensor) : Short circuit to ground
Possible cause:
- B1 (Oil temperature sensor)
Affected functions:
- Engine output
-------------------------------------------------
Test 1: Check component B1 (Oil temperature sensor).
1. Check component B1 (Oil temperature sensor).
Test 1.1: Check component B1 (Oil temperature sensor) using actual value.
Test 1.2: Check internal resistance of component B1 (Oil temperature sensor).
1.1. Check component B1 (Oil temperature sensor) using actual value.
Test prerequisite
- Relevant fault code exists or there is a complaint.
Test sequence
- Switch on ignition.
Status of relevant actual value:
- Oil temperature:Warning! Communication with ECU required.
- Oil temperature : Signal voltage:Warning! Communication with ECU required.
Specified values
- Voltage[20° C] : [3.32...3.45] V
- Voltage[30° C] : [2.82...2.93] V
- Voltage[40° C] : [2.32...2.41] V
- Voltage[50° C] : [1.86...1.93] V
- Voltage[60° C] : [1.46...1.51] V
- Voltage[70° C] : [1.13...1.18] V
- Voltage[80° C] : [0.87...0.90] V
- Voltage[90° C] : [0.67...0.70] V
- Voltage[100° C] : [0.45...0.54] V
- Voltage[110° C] : [0.40...0.42] V
- Voltage[120° C] : [0.28...0.35] V
- Voltage[135° C] : [0.18...0.25] V
- Voltage[150° C] : [0.13...0.17] V
Question
- Are the actual values o.k.?
YES
The actual values are okay.End of test
NO
The actual values are not okay.Possible cause and remedy
- Line from component B1 (Oil temperature sensor) to component N3/10 (ME-SFI [ME] control unit)
- B1 (Oil temperature sensor)
End of test
1.2. Check internal resistance of component B1 (Oil temperature sensor).
Figure legend
- A -ConnectionTest cable 35-pin socket box
- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)
- 05 -35-pin socket box
- 050 -126-pin socket box
- 108 -Test cable 266 589 01 63 00
- N3/10 (ME-SFI [ME] control unit)
- II 1-63ConnectionTest cable
- III 64-126ConnectionTest cable
Warning!
-
- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).
Test prerequisite
- The actual value is not o.k.
Test sequence
- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Disconnect coupling M at component N3/10 (ME-SFI [ME] control unit).
- Measure resistance with multimeter between sockets [M16] 16 and [M82] 82 of the 126-pole socket box tester.
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
- Resistor(120° C): [88...110]ohms
- Resistor(135° C): [57...77]ohms
- Resistor(150° C): [37...57]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
- B1 (Oil temperature sensor)
End of test