Bosch · OBD1300 Scan Tool
The scan tool beeps and displays a 'FAULT PRESENT' message when it detects an intermittent electrical fault during a Wiggle Test. This indicates a problem with a sensor or wiring connection.
Click steps to track your progress.
Perform the Wiggle Test again, focusing on suspect sensors and wiring.
Gently tap and twist wiring, sensors, and connectors while the test is running.
If a fault is detected, check that all sensor connectors are securely attached.
Inspect wiring for any visible signs of damage.
If the fault persists, consult a service manual for specific circuits to test.