Rennie Automotive
Diagnostic

Electrical diagnostics

A check-engine light, a parasitic battery drain, an intermittent no-start — these are the jobs that frustrate other shops and that we are good at. We have the scan tools and the patience to chase a fault down to the right repair instead of throwing parts at it.

What this service includes

Electrical, done the right way.

  • OEM-class scan-tool diagnostics across modules.
  • Wiring-harness repair, connector replacement, ground-circuit work.
  • Battery, alternator, starter testing and replacement.
  • Parasitic-draw diagnostics for cars that drain overnight.
  • CAN-bus and module-communication diagnostics.
Talk to a tech

Drop your car off this week.

Call the shop, leave a note, or use the after-hours drop slot beside the front door. We will reach out before we touch anything you have not already authorized.