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Pinpoint Test G: DTC B1299




Parking Aid

Pinpoint Tests

Pinpoint Test G: DTC B1299

Refer to Wiring Diagram Set 131, Parking Aid for schematic and connector information. Diagrams By Number

Normal Operation

For rear parking aid system, voltage is supplied to the rear parking aid sensors from the Parking Aid Module (PAM) on circuit LMP07 (BU/WH). The PAM supplies ground to the parking aid sensors on circuit RMP07 (GN/WH).

For front parking aid system, voltage is supplied to the front parking aid sensors from the PAM on circuit LMP06 (VT/GY). The PAM supplies ground to the parking aid sensors on circuit RMP06 (YE/OG).

- DTC B1299 (Power Supply Sensor Circuit Short To Ground) - sets when the sensor power supply circuit is shorted to ground or to the sensor (-) circuit.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors
- Parking aid sensor(s)
- Parking aid bumper harness
- PAM



PINPOINT TEST G: DTC B1299

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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G1 CHECK THE BUMPER WIRING HARNESS


- Inspect the bumper wiring harness for opens, shorts, grounds, or corrosion.
- Is the bumper wiring harness OK?

Yes
For the rear parking aid system, GO to G2.

For the front parking aid system, GO to G6.

No
REPAIR or INSTALL a new bumper wiring harness. CLEAR the DTCs. TEST the system for normal operation.

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G2 CHECK THE REAR LH OUTER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C4009.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G3.

No
INSTALL a new rear LH outer parking aid sensor. REFER to Parking Aid Sensor - Rear Parking Aid Sensor - Rear. CLEAR the DTCs. TEST the system for normal operation.

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G3 CHECK THE REAR RH OUTER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C4011.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G4.

No
INSTALL a new rear RH outer parking aid sensor. REFER to Parking Aid Sensor - Rear Parking Aid Sensor - Rear. CLEAR the DTCs. TEST the system for normal operation.

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G4 CHECK THE REAR LH INNER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C4010.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G5.

No
INSTALL a new rear LH inner parking aid sensor. REFER to Parking Aid Sensor - Rear Parking Aid Sensor - Rear. CLEAR the DTCs. TEST the system for normal operation.

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G5 CHECK THE REAR RH INNER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C4012.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G10.

No
INSTALL a new rear RH inner parking aid sensor. REFER to Parking Aid Sensor - Rear Parking Aid Sensor - Rear. CLEAR the DTCs. TEST the system for normal operation.

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G6 CHECK THE FRONT LH OUTER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C1428.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G7.

No
INSTALL a new front LH outer parking aid sensor. REFER to Parking Aid Sensor - Front Parking Aid Sensor - Front. CLEAR the DTCs. TEST the system for normal operation.

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G7 CHECK THE FRONT RH OUTER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C1431.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G8.

No
INSTALL a new front RH outer parking aid sensor. REFER to Parking Aid Sensor - Front Parking Aid Sensor - Front. CLEAR the DTCs. TEST the system for normal operation.

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G8 CHECK THE FRONT LH INNER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C1429.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G9.

No
INSTALL a new front LH inner parking aid sensor. REFER to Parking Aid Sensor - Front Parking Aid Sensor - Front. CLEAR the DTCs. TEST the system for normal operation.

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G9 CHECK THE FRONT RH INNER SENSOR FOR AN INTERNAL SHORT


- Ignition OFF.
- Disconnect: Parking Aid Sensor C1430.
- Ignition ON.
- Clear the DTCs. Repeat the on-demand self-test.
- Is DTC B1299 still present?

Yes
GO to G12.

No
INSTALL a new front RH inner parking aid sensor. REFER to Parking Aid Sensor - Front Parking Aid Sensor - Front. CLEAR the DTCs. TEST the system for normal operation.

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G10 CHECK THE REAR PARKING AID SENSORS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND


- Ignition OFF.
- Disconnect: PAM C4014 (Rear) or C4226a (Front and Rear).
- Measure the resistance between the PAM C4014-9 (rear) or C4226a-9 (front and rear), circuit LMP07 (BU/WH), harness side and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to G11.

No
REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

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G11 CHECK THE REAR PARKING AID SENSORS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO THE REAR PARKING AID SENSORS GROUND CIRCUIT


- Ignition OFF.
- Measure the resistance between the PAM C4014-9 (rear) or C4226a-9 (front and rear), circuit LMP07 (BU/WH), harness side and the PAM C4014-12 (rear) or C4226a-12 (front and rear), circuit RMP07 (GN/WH).




- Is the resistance greater than 10,000 ohms?

Yes
GO to G14.

No
REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

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G12 CHECK THE FRONT PARKING AID SENSORS VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO GROUND


- Ignition OFF.
- Disconnect: PAM C4226b.
- Measure the resistance between the PAM C4226b-1, circuit LMP06 (VT/GY), harness side and ground.




- Is the resistance greater than 10,000 ohms?

Yes
GO to G13.

No
REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

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G13 CHECK CIRCUIT LMP06 (VT/GY) FOR A SHORT TO CIRCUIT RMP06 (YE/OG)


- Ignition OFF.
- Measure the resistance between the PAM C4226b-10, circuit RMP06 (YE/OG), harness side and the PAM C4226b-1, circuit LMP06 (VT/GY).




- Is the resistance greater than 10,000 ohms?

Yes
GO to G14.

No
REPAIR the circuit in question. CLEAR the DTCs. TEST the system for normal operation.

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G14 CHECK FOR CORRECT PAM OPERATION


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

Yes
INSTALL a new PAM. REFER to Parking Aid Module (PAM) Service and Repair. TEST the system for normal operation.

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

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