Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Test
DRIVER ASSISTANCE SYSTEM MODULE (DASM) VERIFICATION TEST
- Disconnect all jumper wires and reconnect all previously disconnected components and connectors.
- With the scan tool, erase DASM DTCs.NOTE:
In some circumstances, a complete power down is necessary to erase the DTC after is has gone to stored. Turn the ignition off for a minimum of 8 minutes allowing the vehicle to do a complete power down and then erase the DTC.
- Make sure that all accessories are turned off and that the battery is fully charged.
- If the DASM was replaced or moved in any way, the DASM must be aligned. Perform the alignment procedure in accordance with the Service Information.
- Test drive the vehicle and verify proper operation.
- Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
- With the scan tool, read DTCs.
Did the DTC return?
Yes
- Repair the DASM DTC(s). Refer to DIAGNOSTIC CODE INDEX .
No
- Repair is complete.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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