PUSH-BUTTON START SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Push-button Start System
DTC Code Detection Item Trouble Area See page
B2271 Ignition Hold Monitor Malfunction

1. AM2 fuse

2. IG1 relays (Instrument panel junction block assembly)

3. IG2 relay (No. 2 integration relay)

4. Power management control ECU

5. Wire harness or connector

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B2274 ACC Monitor Malfunction

1. AM2 fuse

2. ACC relay (Instrument panel junction block assembly)

3. Power management control ECU

4. Wire harness or connector

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B2275 STSW Monitor Malfunction

1. AM2 fuse

2. Power management control ECU

3. Wire harness or connector

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B2277 Detecting Vehicle Submersion

1. Submersion of power management control ECU in water

2. Power management control ECU

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B2282 Vehicle Speed Signal Malfunction

1. CAN communication system

2. Combination meter assembly

3. Power management control ECU

4. No. 12 junction block

5. Wire harness or connector

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B2284 Brake Signal Malfunction

1. AM2 fuse

2. STOP fuse

3. Stop light switch assembly

4. CAN communication system

5. Skid control ECU assembly

6. Power management control ECU

7. Wire harness or connector

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B2286 Runnable Signal Malfunction

1. AM2 fuse

2. Power management control ECU

3. Wire harness or connector

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B27A5 Open in Front Floor Electrical Key Oscillator Circuit

1. No. 1 indoor electrical key antenna assembly (front floor)

2. Certification ECU (smart key ECU assembly)

3. Wire harness or connector

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B27A6 Open in Rear Floor Electrical Key Oscillator Circuit

1. No. 2 indoor electrical key antenna assembly (rear floor)

2. Certification ECU (smart key ECU assembly)

3. Wire harness or connector

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B27A7 Open in Inside Luggage Compartment Electrical Key Oscillator Circuit

1. No. 3 indoor electrical key antenna assembly (inside luggage)

2. Certification ECU (smart key ECU assembly)

3. Wire harness or connector

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U0293 Lost Communication with HV ECU 1. Power management control ECU

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