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Volume 4.1

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LOCATION:    13.5 Anti-Theft Alarm (ATA)   >   12 Diagnosis - Diagnostic Trouble Code (DTC) Memory


Diagnosis - Diagnostic Trouble Code (DTC) Memory

Preparation for Test:
1. Check fuses, OK.
2. Battery voltage 11 - 14 V
3. Unlock vehicle via RCL, deactivate ATA.
4. Ignition: ON
Connect Hand-Held Tester (HHT) according to connection diagram shown in section 0.


Readout of the DTC fault codes begins with the most recent stored fault codes and ends with the fault code of the oldest date
(logic: "last in", "first out").

DTC
Possible cause Test step/Remedy 1)
Combination control module (N10-1) N10-1
Low voltage 7.1 23
Excess voltage 7.1 23
CAN data lines have no communication with PSE Perform function test of RCL, CL, rear window heating and interior lighting,
if not ok: 23 17.0 - 23.0
CAN data lines Low or Combination control module (N10-1)
CAN: Data line Low
23 17.0 - 23.0
CAN data lines High or Combination control module (N10-1)
CAN: Data line High
23 17.0 - 23.0
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
Alarm (ATA) triggered via trunk lamp switch (S17/8) 23 6.0
Alarm (ATA) triggered via engine hood switch (S62) 23 7.0
Alarm (ATA) triggered via left front door switch (S17/3) 23 2.0
Alarm (ATA) triggered via right front door switch (S17/4) 23 3.0
Alarm (ATA) triggered via left rear door switch (S17/5) 23 4.0
Alarm (ATA) triggered via right rear door switch (S17/6) 23 5.0
Alarm (ATA) triggered via radio (running change during M. Y. 1996) 23 9.0
Alarm (ATA) triggered via telephone Currently not used.
Alarm (ATA) triggered via FAX equipment Currently not used.
Alarm (ATA) triggered via ignition system D.M., Body and Accessories, Volume 1, 2.1
Alarm (ATA) triggered via stop lamp switch (S9/1) 23 8.0
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
Circuit 30 interupted while in armed state 23 1.0
Not applicable for U.S. A. vehicles, continue to next test step. -
Not applicable for U.S. A. vehicles, continue to next test step. -
PSE (A37) A37
1) Observe Preparation for Test, see 22.