B1A2BA

B1A2BA-KEY 2 COMMUNICATION ERROR






For a complete wiring diagram refer to Diagrams/Electrical.

- When Monitored:

At ignition on and during Key Programming Mode.

- Set Condition:

When the Sentry Key Remote Entry Module (SKREEM) does not receive a transponder response after 8 consecutive transponder read attempts within 2.0 seconds.






Diagnostic Test

1. VERIFY THAT THE DTC IS ACTIVE

Turn the ignition on.

With the scan tool, record and erase the SKREEM DTCs.

NOTE: Perform the following test several times to ensure the DTC is current.

Turn the ignition off.

Wait 10 seconds.

Turn the ignition on.

With the scan tool, read the SKREEM DTCs.

Does the scan tool display the DTC that was previously erased?

Yes

- Go To 2

No

- Go To 6

2. VERIFY IF MULTIPLE IGNITION KEYS EXIST

Are there multiple vehicle ignition keys available?

Yes

- Go To 3

No

- Go To 4

3. CHECK KEY OPERATION

NOTE: Perform the following steps using one of the vehicle ignition keys. When finished, repeat the procedure using each remaining key, one at a time.

With the scan tool, erase the SKREEM DTCs.

Turn the ignition off.

Wait 10 seconds.

Turn the ignition on.

With the scan tool, read the SKREEM DTCs.

Is the DTC present for all ignition keys?

Yes

- Replace and program the SKREEM.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests

No

- Replace all ignition keys that cause the DTC to set.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests

4. REPROGRAM THE IGNITION KEYS

With the scan tool, attempt to reprogram the ignition keys to the SKREEM.

With the scan tool, erase the SKREEM DTCs.

Wait 10 seconds.

Turn the ignition on.

With the scan tool, read the SKREEM DTCs.

Does the DTC set again?

Yes

- Go To 5

No

- Test complete.

5. PROGRAM A NEW IGNITION KEY

Replace the existing ignition key with a new key.

With the scan tool, program the new ignition key to the SKREEM.

With the scan tool, erase the SKREEM DTCs.

Turn the ignition off.

Wait 10 seconds.

Turn the ignition on.

With the scan tool, read the SKREEM DTCs.

Does the DTC set again?

Yes

- Replace and program the SKREEM.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests

No

- Test complete.

6. CHECK THE WIRE HARNESS FOR CAUSE OF INTERMITTENT CONDITION

Turn the ignition off.

NOTE: Check the following items:
- Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or partially broken wires.
- Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
- Refer to any Technical Service Bulletins (TSB) that may apply.

Were any problems found?

Yes

- Repair wiring harness/connectors as necessary.
- Perform SKREEM VERIFICATION TEST. Vehicle Theft Security Verification Tests

No

- Test Complete.