Credov

C1490 fault code: what it means

C1490: Rear differential (ELSD) actuator initialisation failure on Grand Cherokee WK2. FCA says replace the ELSD motor along with the software update.

Chassis (brakes, steering, suspension) · Costly if missed

Usual causes, most likely first

  1. failed ELSD motor
  2. ELSD module software
  3. wiring

C1490 by make

Jeep

Rear differential (ELSD) actuator initialisation failure on Grand Cherokee WK2. FCA says replace the ELSD motor along with the software update.

Usual causes: failed ELSD motor; ELSD module software; wiring

Not sure what C1490 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.