SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 169 (ENGINE IMMOBILIZER SYSTEM)SELF-DIAGNOSTIC SYSTEMDIAGNOSTIC TROUBLE CODE DEFINITIONS
2004 Toyota Matrix XR, FWD, Standard

Diagnostic Trouble Code Definitions

2004 Toyota Matrix XR, FWD, StandardSECTION Diagnostic Trouble Code Definitions
WARNING: This page is about a different car, the 2002 Lexus GS 430 and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: To reduce the unnecessary exchange of ECM, check that a trouble occurs with the original ECM at the time of exchanging ECM and the trouble will disappear with a new ECM.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC (1) Description
B2795/99 (2) Unmatched Key Code
B2796/99  No Communication In Immobilizer System
B2797/99  Communication Malfunction No. 1
B2798/99  Communication Malfunction No. 2
(1) Four-digit "B" code is displayed on scan tool. Two-digit code is output by flashes of the malfunction indicator light. Codes listed in this table are only for testing covered in this article. Perform appropriate test under DIAGNOSTIC TESTS .
(2) For 2003 models, DTC is renumbered to DTC P0513/99.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.