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13.7 Anti-Theft Alarm (ATA) > 12 Diagnosis - Diagnostic Trouble Code (DTC) Memory

Diagnosis - Diagnostic Trouble Code (DTC) Memory

Preparation for Test:
1. Review following documents in WIS: GF80.50-P-0001B (ATA up to 05/98) and GF80.50-P-0001F (ATA as of 06/98). Also review ETM docs: PE80.00-P-1100D and PE80.00-P-1100A
2. Review section: C/1, 10, 20, 22, 23, 31
3. Check fuses, OK,
4. Battery voltage 11 - 14 V,
5. Voltage supply for control module and CAN-wiring ok,
6. Unlock vehicle via RCL transmitter key, deactivate ATA,
7. Ignition: ON
8. Connect Hand-Held Tester (HHT) according to connection diagram shown in section 0, review 22/3 as well for ATA/socket box connections.

The DTC memory can only be readout and erased via the HHT.

While performing the DTC readout, it is possible that DTCs may appear that are not relevent to the system being checked, meaning that all stored DTCs in that particular control module are being displayed.

> resistance too great
< resistance too low
+ short circuit to positive (POS)
- short circuit to ground (GND)
-//- open circuit

Readout and record DTC's.
Recorded faults found in fault table.
Interrupt the voltage for PSE control module for approx. 3 secs., to erase safety memory.

DTC

Possible cause Test step/Remedy 1)

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. -

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. -

Short circuit in ATA tow sensor (B33) 23 9.0

CL safety time exceeded,
Pneumatic demand too high Pneumatic lines,
See DM, B&A, Vol. 2, Test Section 4.10

CL safety time, Multi-contour Seat
Pneumatic demand too high Pneumatic lines,
Multi-contour Seat

Safety time, Manifold vacuum assist (MVA) demand exceeded
Pneumatic demand too high Pneumatic lines,
Multi-contour Seat

Safety time, Remote trunk lid release (RTR) exceeded
Pneumatic demand too high Pneumatic lines,
Multi-contour Seat

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 siren with auxiliary battery (H3/1) not installed, not version coded, defective, (as of 06/98) Version coding, see 31,
Alarm siren,
23 5.0

Alarm (ATA) triggered via trunk lamp switch (S17/8) 3.4 PSE 23

Alarm (ATA) triggered via engine hood switch (S62) 23 1.0

Alarm (ATA) triggered via left front door switch (S17/3) 3.4 PSE 23

Alarm (ATA) triggered via right front door switch (S17/4) 3.4 PSE 23

Alarm (ATA) triggered via left rear front door switch (S17/5) 3.4 PSE 23

Alarm (ATA) triggered via right rear front door switch (S17/6) 3.4 PSE 23

Reserve alarm input Currently not used.

Alarm (ATA) triggered via telephone Currently not used.

Alarm (ATA) triggered via FAX equipment Currently not used.

Alarm (ATA) triggered via ignition system Wiring.

Alarm (ATA) triggered via stop lamp switch (S9/1) 23 2.0

Not applicable for U.S. A. vehicles, continue to next test step. -

Not applicable for U.S. A. vehicles, continue to next test step. -

Alarm (ATA) triggered via Anti-tow sensor (B33) 23 7.0,
23 9.0

Circuit 30 interupted while in armed state DM, B&A, Vol. 2.1, Test Section 7.1, 23

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) Replace PSE (A37)

1) Observe Preparation for Test, see 22.