Preparation for Test
1. All fuses ok.
2. Voltage supply to AAM is OK.
3. Connect the Hand-Held Tester (HHT) to X11/4, according to diagram, see
section 0.
4. HHT serial interface is OK
|
Test equipment; See MBUSA Standard Service
Equipment Program
| Description |
Brand, model, etc. |
| Digital multimeter |
Fluke models 23, 77 III, 83, 85, 87 |
DTC
 |
Fault text |
Possible cause |
Test step/Remedy |
| (No communication with HHT possible) |
|
Diagnostic line |
23  2.0 |
| No fault |
|
No fault recognized
In case of complaint; perform entire diagnostic test in specific system. |
DM,
B&A, Vol. 6,
20.1, 13,
DM, B&A, Vol. 2,
4.10, 13,
DM, B&A, Vol. 4.1,
13.8, 14 |
    |
No CAN message:
-from engine control module (N3)
-from traction system control module (N47)
-from instrument cluster (A1)
-from transfer case control module (N78)
-from trip computer control module (TRIP) (N41) |
CAN data bus,
corresponding control module |
23 3.0,
23
5.0,
23
6.0,
23
7.0,
23
8.0 |
 
|
Transponder:
-cannot be read
-fixed code invalid
-fixed code in order but variable code invalid
-fixed code valid but not enabled
-fault when describing |
Observe hints on replacing AAM
Defective transmitter key
Transponder coil (L11)
Invalid transmitter key
Transmitter key disabled
Transponder coil (L11) |
Version coding,
31,
Transmitter key.
DM, B&A, Vol. 2,
4.10, 13
L11
|
|
ATA interior motion sensor/tilt sensor
defective
No pulse signal when configured |
Signal cable N41/N10
Trip computer control module (TRIP) (N41) |
DM,
B&A, Vol. 4.1,
13.8, 23 |
 |
Central locking signalling contact,
driver's door implausible |
Microswitch (CL) (M14/6s1) |
DM,
B&A, Vol. 6,
20.1, 13 |
|
Central locking signalling contact,
front passenger's door implausible |
Microswitch (CL) (M14/5s1) |
DM,
B&A, Vol. 6,
20.1, 13 |
|
Central locking signalling contact,
tailgate implausible |
Microswitch (CL) (M14/7s1) |
DM,
B&A, Vol. 6,
20.1, 13 |
|
Printable
version
