Pinpoint Test B: DTC B10D7:87

Anti-Theft - Integrated Keyhead Transmitter (IKT)

Pinpoint Test B: DTC B10D7:87

Normal Operation
- DTC B10D7:87 ( PATS Key: Missing Message) - a continuous and on-demand DTC that sets if the Instrument Panel Cluster (IPC) does not receive a key read. When this occurs, the vehicle experiences a Passive Anti-Theft System (PATS) no-start.

This pinpoint test is intended to diagnose the following:

- PATS key
- PATS transceiver
- IPC



PINPOINT TEST B: DTC B10D7:87

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B1 RETRIEVE THE DTCs


- Ignition ON.
- Clear the IPC DTCs.
- Ignition OFF.
- Ignition ON.
- Retrieve the IPC DTCs.
- Is DTC B10D7:87 retrieved?

Yes
GO to B2.

No
If any other IPC DTCs are retrieved, REFER to Body Control Systems.

If no DTCs are retrieved, the system is OK. The concern may have been caused by an intermittent concern with the key, the transceiver or the IPC.

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B2 CHECK BOTH PATS KEYS


- Obtain both PATS keys from the customer and follow the procedure using one PATS key, then the other. If the customer only has one PATS key, it is necessary to cut a new PATS key.
- If it is necessary to cut a new PATS key, program the new PATS key. Refer to Key Programming Using Diagnostic Equipment - Integrated Keyhead Transmitter (IKT) Integrated Keyhead Transmitter (IKT).
- Ignition ON.
- Clear the IPC DTCs.
- Ignition OFF.
- Ignition ON.
- Retrieve the IPC DTCs.
- Using all existing keys, then the newly programmed key (if applicable), is DTC B10D7:87 present?

Yes
If DTC B10D7:87 was present for both keys or the new key (if present), GO to B3.

If DTC B10D7:87 was present for the new key, the original key may be damaged and should be replaced. REPLACE the damaged key with a new key. REFER to Key Programming Using Diagnostic Equipment - Integrated Keyhead Transmitter (IKT) Integrated Keyhead Transmitter (IKT). CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test. TEST the system for normal operation.

No
If any other IPC DTCs are retrieved, REFER to Body Control Systems.

If no IPC DTCs are retrieved, the system is OK. The concern may have been caused by an intermittent concern with the key, the transceiver or the IPC.

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B3 INSTALL A NEW PATS TRANSCEIVER


NOTE: Replacement of the PATS transceiver does not require the PATS keys to be programmed into the IPC again.

NOTE: Do not use the PATS key that may have been programmed in Step B2.

- Ignition OFF.
- Install a new PATS transceiver. Refer to Passive Anti-Theft System (PATS) Transceiver [1][2]Anti-Theft - Passive Anti-Theft System (PATS) - Backup Transceiver.
- Ignition ON.
- Clear the IPC DTCs.
- Ignition OFF.
- Turn the key to the ON position using an existing customer PATS key.
- Retrieve the IPC DTCs.
- Is DTC B10D7:87 retrieved?

Yes
GO to B4.

No
The system is OK.

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B4 CHECK FOR CORRECT IPC OPERATION


- Disconnect the IPC connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the IPC connector and make sure it seats correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new IPC. REFER to Instrument Panel, Gauges and Warning Indicators. RESET the parameters in both the IPC and the PCM. REFER to Passive Anti-Theft System (PATS) Parameter Reset - Integrated Keyhead Transmitter (IKT) With Integrated Keyhead Transmitter (IKT). PROGRAM the PATS keys into the new IPC. REFER to Key Programming Using Diagnostic Equipment - Integrated Keyhead Transmitter (IKT) Integrated Keyhead Transmitter (IKT). CYCLE the ignition. REPEAT the self-test.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. CYCLE the ignition. REPEAT the self-test.

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