Back to 2004 Dodge Caravan

2004 DODGE CARAVAN

3.3L V6FWDAUTOMATICgas
8 active safety recalls on this vehicle — view recalls
Repairs0Labor477Torque3839Fluid6DTC735Battery0Maintenance0Recalls8
U0008high severityNetwork

High Speed CAN Communication Bus (-) High

on 2004 Dodge Caravan 3.3L V6 · FWD

What this code means

The CAN Low wire voltage is higher than expected, indicating a short to power.

Symptoms

  • CAN bus failure
  • Multiple communication errors
  • Systems unresponsive

Common causes

  • CAN L shorted to battery voltage
  • Wiring harness damage
  • Module fault driving CAN L high

Diagnostic steps

  1. Measure CAN L voltage
  2. Disconnect modules to isolate
  3. Inspect wiring for shorts to power circuits
  4. Check harness routing near power wires

Repair notes

Repair CAN L short to power. Ensure CAN wiring is properly separated from power wiring.

Other Network codes on this vehicle

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