Engine Error
P0703
Torque Converter/Brake Switch B Circuit
Severity
Medium
Symptoms
Torque converter fails to lock up, poor highway fuel economy, cruise control won't set
Common Causes
- Defective brake light switch
- Misadjusted brake pedal switch
- Blown brake light fuse
- Wiring harness short or open
How to Fix
- 1 Replace brake pedal switch
- 2 Adjust switch clearance
- 3 Check and replace fuses
- 4 Repair wiring to brake switch
Estimated Repair Cost
USD
$10
–
$150
Brake switch replacement: $50 - $150