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B2796 Diagnostic Trouble Code Discussion for January 2019

No Communication With The Immobilizer System


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Trouble Ticket Help Requests for DTC B2796
Help Request Posted
2003 Toyota Highlander 3.0L No Start VIN: JTEHF21A73
B2796: No Communication Immobilizer. Towed in as no start. Observed new battery, tried to start. No starting, NO check engine lamp during ignition on. No communication with ECU. All other modules responding. Verified 5.0v output to TPS, nothing. Verified power at E5 pin 1 & 2, verified gr...
January 10, 2019