NHTSA ID Number: 10201321
Manufacturer Communication Number: PIT5662F
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
51 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
BUICK | ENCLAVE | 2018-2022 |
| CADILLAC | XT5 | 2017-2022 |
| CADILLAC | XT6 | 2020-2022 |
| CHEVROLET | BLAZER | 2019-2022 |
| CHEVROLET | SILVERADO 1500 | 2019-2022 |
| CHEVROLET | SILVERADO 2500 | 2020-2022 |
| CHEVROLET | SILVERADO 3500 | 2020-2022 |
| CHEVROLET | TRAVERSE | 2018-2022 |
| GMC | ACADIA | 2017-2022 |
| GMC | SIERRA 1500 | 2019-2022 |
| GMC | SIERRA 2500 | 2019-2022 |
| GMC | SIERRA 3500 | 2019-2022 |
Condition
Service Parking Brake Message, Red Park Indicator Flashing & or Amber Parking Brake Wrench Indicator Illuminated. With DTC C056D, C056E or C0616 Could Have Other ABS DTC’s. If replacing the EBCM, high EPB actuator or circuit resistance will not allow programming to complete and result in an error E6961.
Cause
Resistance in the Electronic Park Brake(EPB) circuit or Park brake actuator.
Correction:
Measure both rear park brake circuit resistance at the EBCM with the EPB actuators plugged in. Should be 0.6 or less on the circuit.
If resistances are above .6 ohm inspect wiring for excessive resistance and repair.
If wiring is ok, disconnect actuator and test resistance at the actuator, if greater than .6 ohms, replace actuator.
If the actuator is replaced make sure the O ring is seated between the EPB actuator and caliper.
Apply dielectric grease to connector before plugging in actuator.
If you had programming error E6961 after repairing wiring or replacing actuator you may need to power down the EBCM for over 5 minutes before programming.
SEOCONTENT-START
Bulletin No.: PIT5662F Published date: 08/19/2021 Preliminary Information PIT5662F Service Parking Brake Message, Red Park Brake Indicator Flashing & or Amber Parking Brake Wrench Indicator Illuminated. DTC C056D, C056E or C0616 Could Have Other ABS DTCs Models Brand: Buick Cadillac Cadillac Chevrolet Enclave XT5 XT6 Blazer Model: Model Years: 2018 – 2022 2017 – 2022 2020 – 2022 2019 – 2022 VIN: from to All All All All All All All All Engine: All All All All Transmissions: All All All All Chevrolet Chevrolet GMC GMC Holden Silverado 1500 (New Model) Traverse Acadia Sierra 1500 (New Model) Acadia 2019 – 2022 2018 – 2022 2017 – 2022 2019 – 2022 2017 – 2022 All All All All All All All All All All All All All All All All All All All All Involved Region or Country Condition Cause North America Service Parking Brake Message, Red Park Indicator Flashing & or Amber Parking Brake Wrench Indicator Illuminated. With DTC C056D, C056E or C0616 Could Have Other ABS DTC’s. If replacing the EBCM, high EPB actuator or circuit resistance will not allow programming to complete and result in an error E6961. Resistance in the Electronic Park Brake(EPB) circuit or Park brake actuator. Correction: Measure both rear park brake circuit resistance at the EBCM with the EPB actuators plugged in. Should be 0.6 or less on the circuit. If resistances are above .6 ohm inspect wiring for excessive resistance and repair. If wiring is ok, disconnect actuator and test resistance at the actuator, if greater than .6 ohms, replace actuator. If the actuator is replaced make sure the O ring is seated between the EPB actuator and caliper. Apply dielectric grease to connector before plugging in actuator. If you had programming error E6961 after repairing wiring or replacing actuator you may need to power down the EBCM for over 5 minutes before programming. Note: This PI may be converted to a Bulletin in the future if new information becomes available. Warranty Information For wiring repairs covered under warranty, please refer to latest version of bulletin 10-00-89-005 for warranty information on wire/connector repairs. Version History Version 7 Modified 03/06/2019 – Created on. 04/25/2019 – Updated correction section 05/03/2019 – Updated to add 2019 Blazer, Silverado and Sierra T1XX. 09/18/2020 – Updated to add inspect wiring for excessive resistance and repair. If wiring is ok, disconnect actuator and test resistance at the actuator, if greater than .6 ohms, replace actuator. 08/19/2021- Updated to add 2020, 2021 and 2022 MY and DTC C0616
SEOCONTENT-END
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662F
Published date: 08/19/2021
NHTSA ID Number: 10181147
Manufacturer Communication Number: PIT5662E
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662E
Published date: 09/18/2020
NHTSA ID Number: 10171261
Manufacturer Communication Number: PIT5662D
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662D
Published date: 01/9/2020
MC-10171261-9999.pdf 101.803KB
NHTSA ID Number: 10163670
Manufacturer Communication Number: PIT5662C
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662C
Published date: 07/19/2019
MC-10163670-9999.pdf 101.706KB
NHTSA ID Number: 10160977
Manufacturer Communication Number: PIT5662B
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662B
Published date: 05/3/2019
NHTSA ID Number: 10160691
Manufacturer Communication Number: PIT5662A
Summary
This Preliminary information communicates information to diagnose DTC C056D or C056E.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIT5662A
Published date: N/A
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