P0DED

Code

Generic P — Powertrain

Pedestrian Alert Control Module Circuit/Open

Brand: Generic

Type: P — Powertrain

Views: UK: 23 EN: 29 RU: 19

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Page language: EN

Causes

Open or broken wiring in module harness
Corroded, bent or pushed-out connector pins
Poor or missing ground at module
Blown fuse or fusible link feeding the module
Water intrusion or connector contamination
Intermittent harness damage (chafing, broken conductor)

Symptoms

DTC P0DED stored and lamp or message related to pedestrian alert
Pedestrian alert (audible chime or external alert) inoperative or intermittent
Related driver information message or warning displayed
Possible loss of other body/control features if shared power/ground affected
No communication data for the pedestrian alert module in a scan tool (if communication fault)

What to check

Use a scan tool: read freeze frame, all stored and pending codes and module data/availability
Visually inspect the Pedestrian Alert module connector for corrosion, bent pins, or water
Check fuses and fusible links related to pedestrian alert or body control circuits
Verify battery voltage at vehicle battery and at module power pin with key ON (expected ~12 V)
Backprobe module connector: measure reference voltage (if present) and ground continuity
Perform wiggle test on wiring harness while observing live data or checking for code changes

Signal parameters

Module power supply: ~12 V (within 0.5–1.0 V of battery resting/ON voltage)
Ignition-switched reference: present with key ON when applicable
Ground resistance: less than 1–2 ohms to chassis ground
Module reference signal (if used): 5 V reference (±0.5 V) for logic circuits where applicable
CAN/BUS: module should appear on the bus (check by seeing messages or using bus monitor); typical CAN speed 250/500 kbps depending on vehicle
Open-circuit indication: very high resistance or OL on continuity checks between module pin and fuse/battery/ground

Diagnostic algorithm

Retrieve and record codes and freeze-frame with a capable scan tool. Note if multiple modules report related faults.
Confirm power and ground: with key ON, measure supply voltage at module power pin and check ground continuity to chassis.
Visually inspect and disconnect the module connector. Check pins for corrosion, deformation, pushed-out terminals, or moisture.
Check relevant fuses and fusible links; replace if blown and retest. If fuse blows again, investigate short to ground.
Backprobe or probe harness connectors to verify reference and signal voltages are present/within expected ranges (see signal_params).
Perform continuity checks from module connector to the fuse/battery and to chassis ground. Repair any open or high-resistance circuits.
If the module communicates on CAN, verify it appears on the bus. If communication is absent, check bus termination and wiring to other modules.
Repair or replace damaged wiring, terminals or connectors. Clean and apply dielectric grease to corroded connectors if repairable.
If wiring/connector repairs do not clear the DTC, consider replacing the Pedestrian Alert Control Module per manufacturer procedure.
After repairs, clear codes and perform a functional test and a road test or operational test to confirm the pedestrian alert works and the code does not return.

Likely causes

Connector not fully seated or corroded pins at the module
Open or shorted wire in harness (common after recent repairs or impact)
Missing/poor ground at module mounting point
Blown fuse protecting the module supply
Failed module internal circuitry

Fault status

⚠️ Status

P0DED - Pedestrian Alert Control Module Circuit/Open: Open or lost electrical connection detected in the Pedestrian Alert module circuit (power, ground or signal).

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 0.5-3.0 hours