P2221

The signal of component Y3/6b1 (Transmission oil temperature sensor) and (or) Y3/6s1 (Starter lockout contact) is implausible.


Possible cause:

- Y3/6b1 (Transmission oil temperature sensor)
Affected functions:

- Automatic transmission Function

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Test 1: Check component Y3/6s1 (Starter lockout contact).

1. Check component Y3/6s1 (Starter lockout contact).
Check component Y3/6s1 (Starter lockout contact).
Operation number of operation texts and work units or standard texts and flat rates:27-0641Test sequence

- Switch off ignition.
- Connect socket box.
- Detach coupling at component N15/3 (ETC [EGS] control unit).
- Selector lever in position R/D
- Measure resistance with multimeter between sockets [2.34] 34 and [2.33] 33 of the 126-pole socket box tester.
Specified value:

- Resistor[0.5...2.5]kohms
NOTE

- Check and note readout(s).
Continue with button "F2"







Test prerequisite

- The preceding measurement was performed and the measurement value was noted.
Test sequence

- Selector lever in position P/N
- Measure resistance with multimeter between sockets [2.34] 34 and [2.33] 33 of the 126-pole socket box tester.
Specified value:

- Resistor[> 20]kohms
Question

- Are the measurement values OK?







YES
The measurement values are OK.Possible cause and remedy

- Replace component N15/3 (ETC [EGS] control unit).
Notes on submitting warranty or goodwill claimsSEAG damage code (7 digits): 54 553 73 Continue with button "F2"







Warning!Communication with ECU required.


NO
The measurement value is not OK.Possible cause

- Wiring harness between transmission and component N15/3 (ETC [EGS] control unit) is jammed or damaged because of a chafing point.
- Wiring harness has dropped off from control module N15/3 (ETC [EGS] control unit) or has not been correctly plugged in after completing repairwork.
- Discontinuity in line from control unit N15/3 (ETC [EGS] control unit) and component Transmission.
- Component Y3/6s1 (Starter lockout contact) is defective.
Possible remedy

- Inspect wiring and plug connections between Transmission and control unit N15/3 (ETC [EGS] control unit) for corrosion, loose contacts and damage.
- Repair wiring.
Notes on submitting warranty or goodwill claimsSEAG damage code (5 digits):Short circuit : 27 023Open circuit : 27 023 Notes on submitting warranty or goodwill claimsSEAG damage code (5 digits):Short circuit : 27 023Open circuit : 27 023 Continue with button "F2"

Further test procedure

- Erase fault memory.
Continue with button "F2"

Warning!Communication with ECU required.