SES Traction Control lamp on and Engine Runs Rough with DTC P0300 – 2014-2019 Chevrolet GMC Cadillac

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Bulletin No.: PIP5298B Published date: 05/28/2019
Preliminary Information
PIP5298B SES Traction Control lamp on and Engine Runs Rough with DTC P0300
Models

Brand: Model: Model Years:

VIN:
from to

Engine: Transmissions:

Cadillac Escalade 2015 – 2019 All All 6.2 L86
All Chevrolet Silverado LD 2014 – 2019 All
All 4.3L LV3 5.3 L83 6.2 L86 All Chevrolet Suburban 2015 –
2019 All All 5.3 L83 6.2 L86 All
Chevrolet Tahoe 2015 – 2019 All All 5.3 L83 6.2 L86
All GMC Sierra Limited 2014 – 2019 All
All 4.3L LV3 5.3 L83 6.2 L86 All GMC Yukon 2015 –
2019 All All 5.3 L83 6.2 L86 All
GMC Yukon XL 2015 – 2019 All All 5.3 L83 6.2 L86
All

Supersession Statement
This PI was superseded to update Model Years. Please discard PIP5298A.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this
PI.

Condition / Concern
Some customers may comment on an SES light with DTC P0300 set and/or a rough running engine concern
Recommendations / Instructions
If SI diagnostics have been completed with no trouble found inspect for a possible terminal tension
concern on both the ignition coil power feed for a possible cause of the DTC P0300 set and/or a
rough running engine, and the X2 connector of the UBEC (Under hood Fuse
Block) for an intermittent SES Traction control lamp concern and repair as necessary.

X2 Terminal

Notice terminal “spread” NO tension

Notice Tighter tension of terminal after repair
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.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition
exhibited is resolved without completing every step, the remaining steps do not need to be
performed.

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