Toyota Venza: Diagnostic Trouble Code Chart

Toyota Venza Service Manual / Theft Deterrent / Keyless Entry / Engine Immobiliser System(w/o Smart Key System) / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

HINT:

If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to "See page" below.

1. TRANSPONDER KEY ECU DIAGNOSTIC TROUBLE CODE CHART

Transponder Key ECU Assembly

DTC Code	Detection Item	Trouble Area
B2780	Push Switch / Key Unlock Warning Switch Malfunction	1. Wire harness or connector 2. Unlock warning switch assembly 3. Transponder key ECU assembly
B2784	Antenna Coil Open / Short	1. Wire harness or connector 2. Transponder key amplifier 3. Transponder key ECU assembly
B2793	Transponder Chip Malfunction	Key
B2794	Unmatched Encryption Code	Key
B2795	Unmatched Key Code	Key
B2796	No Communication in Immobiliser System	1. Key 2. Transponder key amplifier 3. Transponder key ECU assembly
B2797	Communication Malfunction No. 1	1. Key 2. Transponder key amplifier 3. Transponder key ECU assembly
B2798	Communication Malfunction No. 2	1. Key 2. Transponder key amplifier 3. Transponder key ECU assembly

2. ECM DIAGNOSTIC TROUBLE CODE CHART

HINT:

The DTCs for the engine immobiliser system are specified below. If other codes are output, check the DTC chart for the SFI system.

ECM

DTC Code	Detection Item	Trouble Area
B2799	Engine Immobiliser System Malfunction	1. Wire harness or connector 2. ECM 3. Transponder key ECU assembly
B279A	Theft Deterrent System Communication Line High Fixation	1. Wire harness or connector 2. Transponder key ECU assembly 3. ECM
B279C	Theft Deterrent System Presence Detection	ECM

DTC Code

Detection Item

Trouble Area

See page

B2799

Engine Immobiliser System Malfunction

1. Wire harness or connector

2. ECM

3. Transponder key ECU assembly

B279A

Theft Deterrent System Communication Line High Fixation

1. Wire harness or connector

2. Transponder key ECU assembly

3. ECM

B279C

Theft Deterrent System Presence Detection

ECM

Data List / Active Test

DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any p ...

No Communication in Immobiliser System (B2796,B2798)

DESCRIPTION These DTCs are stored if a key that does not have a transponder chip is inserted into the ignition key cylinder or if communication between the key and the transponder key ECU assembl ...

Other materials about Toyota Venza:

Unmatched Encryption Code (B2794)
DESCRIPTION This DTC is stored when a key with an incomplete key code is inserted into the ignition key cylinder. DTC No. DTC Detection Condition Trouble Area B2794 Key with incomplete key code i ...

Dtc Check / Clear
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" ...