P0723moderate severityPowertrain
Torque Converter/Brake Switch B Circuit Intermittent
on 2005 Dodge Viper 8.3L V10 · RWD
What this code means
The brake switch input to the transmission controller is cutting out intermittently. This affects torque converter lockup and cruise control cancel logic.
Symptoms
- Intermittent cruise dropout
- Torque converter lockup issues
- Random brake light complaints
Common causes
- Loose brake switch connector
- Intermittent wiring fault
- Failing brake switch
- Faulty TCM
Diagnostic steps
- Retrieve codes and freeze frame
- Monitor brake switch input while pressing pedal
- Wiggle-test switch wiring
- Replace brake switch if intermittent
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P0001
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P0002
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P0003
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P0004
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P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
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P0007
Fuel Shutoff Valve A Control Circuit High
P0008
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P0009
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P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1