OBD Guide
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C1498

Rear Driveline Module Fork Position Performance Or Incorrect Operation

C1498 is an OBD-II diagnostic trouble code meaning: Rear Driveline Module Fork Position Performance Or Incorrect Operation. Common causes: worn or damaged shift fork, malfunction of the electric motor or fork actuator. Estimated repair cost: $56–389.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–389 (est.)

Symptoms

  • 4WD or AWD light is on
  • Inability to switch drive modes
  • Jerks or jolts in the transmission when trying to change modes
  • Extraneous sounds from the transfer case
  • Constant stay in one drive mode

Causes

  • Worn or damaged shift fork
  • Malfunction of the electric motor or fork actuator
  • Fork position sensor malfunction
  • Open or shorted drive control unit wiring
  • Low oil level in transfer case

How to Fix

  1. Read codes from rear wheel drive control module and check real-time data
  2. Check the level and condition of the oil in the transfer case
  3. Check power supply and fork position sensor signal
  4. Check the integrity of the plug actuator wiring
  5. Try to force a mode switch through the scanner
  6. Contact a specialist for mechanical diagnostics of the transfer case

Related codes

C1497C1499C1498C1610

FAQ

What does the C1498 code mean?

C1498 is an OBD-II diagnostic trouble code that indicates: Rear Driveline Module Fork Position Performance Or Incorrect Operation

What causes a C1498 error code?

The most common causes of C1498 include: Worn or damaged shift fork; Malfunction of the electric motor or fork actuator; Fork position sensor malfunction; Open or shorted drive control unit wiring.

How do I fix a C1498 diagnostic trouble code?

To fix C1498: Read codes from rear wheel drive control module and check real-time data. Check the level and condition of the oil in the transfer case. Check power supply and fork position sensor signal. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1498?

Yes, but get it checked soon

How much does it cost to fix C1498?

The estimated repair cost for C1498 is $56–389. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat