B1419

Code

FIAT B — Body

Front right electric window motor open circuit

Brand: FIAT

Type: B — Body

Views: UK: 14 EN: 25 RU: 22

AI status

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Page language: EN

Verify customer complaint by operating the front right window from driver and passenger switches
Check relevant fuse(s) and replace if blown; inspect fuse holder for corrosion
Visually inspect motor and switch connectors for corrosion, bent pins or water
Scan BCM/comfort module for active/inactive related DTCs and freeze frame data
Backprobe motor connector and switch to verify presence of battery voltage and ground when operated
Measure continuity between motor connector and BCM/switch to detect open wires (with door closed and open to exercise flex section)

Command voltage to motor: ~12 V (battery) on one terminal when motor commanded in one direction, and ~0 V/ground on the opposite terminal (polarity reverses for up/down)
No command voltage present = open or switch/BCM fault
Motor coil resistance: typically low (ohms range) — an open reading indicates internal motor open
Motor current draw during normal operation: several amps; very high current indicates binding, no current with correct voltage indicates open circuit

Confirm symptom and note if any other window circuits are affected.
Check and inspect fuses/relay related to power windows; replace if necessary.
Use a scan tool to read B1419 and any related DTCs; clear codes and attempt operation to see if fault returns.
With ignition on, backprobe the motor connector while an assistant operates the switch. Verify presence of voltage and ground signals on the two motor terminals in each direction.
If no voltage, backprobe at the switch connector and check if switch sends voltage/ground. If switch is OK, suspect wiring between switch and motor or BCM output.
If neither switch nor motor sees voltage, trace continuity from motor connector to the BCM/switch, focusing on the door hinge flex section. Repair any open or damaged wire.
If voltage is present at the motor connector but the motor does not run, disconnect and measure motor coil resistance. An infinite/open reading indicates a failed motor; very low or shorted readings indicate internal short.
For confirmation, briefly apply battery voltage directly to the motor (observe polarity and safety; use fused leads and short test only) to verify motor operation. If motor runs, problem is upstream (switch/harness).
Repair or replace faulty component (connector repair, harness repair, switch, motor, or BCM as determined). Reassemble door trim, clear codes, and verify correct operation and absence of B1419.

⚠️ Status

Front right electric window motor open circuit detected — window may be inoperative. Inspect connectors, wiring, switch and motor.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-1.5 hours

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