Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 616 (CRUISE CONTROL SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC TROUBLE CODE (DTC) LIST
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Diagnostic Trouble Code (DTC) List
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Diagnostic Trouble Code (DTC) List
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Diagnostic Trouble Code (DTC) List
| DTC | Diagnostic Procedure | Module(s) |
|---|---|---|
| CXXXX | Diagnostic Trouble Code (DTC) List in Antilock Brake System | EBCM |
| P0502 | DTC P0502 (3.4L) in Automatic Transaxle - 4T65-E | PCM/ECM |
| P0503 | DTC P0503 (3.4L) in Automatic Transaxle - 4T65-E | PCM/ECM |
| P0504 | DTC P0504 in Lighting Systems | ECM |
| P0567 | DTC P0567 | ECM |
| P0568 | DTC P0568 | ECM |
| P0719 | DTC P0719 (3.4L)DTC P0719 (3.6L) in Automatic Transaxle - 4T65-E | PCM/TCM |
| P0724 | DTC P0724 (3.4L)DTC P0724 (3.6L) in Automatic Transaxle - 4T65-E | PCM/TCM |
| P1554 | DTC P1554 | PCM |
| P1585 | DTC P1585 | PCM |
| PXXXX | Diagnostic Trouble Code (DTC) List
in Engine Controls - 3.4L Scan Tool Data List in Engine Controls - 3.6L (LY7) |
PCM/ECM |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.