P2EAB

Code

Generic P — Powertrain

Active Radiator Air Flow Control Module A Over Temperature

Brand: Generic

Type: P — Powertrain

Views: UK: 24 EN: 34 RU: 23

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Page language: EN

Excessive module operating temperature (internal over-temp)
Restricted airflow over module or heat sink (debris, crash damage, obstructed grille)
High fan motor load (binding, seized, or damaged fan)
Poor electrical supply (low battery/charging system voltage, high resistance)
Shorted or damaged wiring or connector causing excessive current draw or heating
Failed or degraded module electronics (internal component fault)

Read freeze-frame and live data with a scan tool: module internal temperature, fan command, fan RPM or duty, coolant temp, battery voltage
Visual inspection of module, heat sink, mounting, and surrounding airflow path for debris, damage or fluid contamination
Inspect wiring harness and connector for corrosion, melted insulation, loose pins or water ingress
Verify fan(s) spin freely by hand (with ignition off) and are not obstructed
Measure battery and charging system voltage with engine off and running
Measure fan motor current draw while commanded on and compare to spec

Module internal temperature (typical normal range: well below critical threshold; overheating when dramatically higher than ambient/coolant)
Fan command duty or relay state: 0–100% duty or ON/OFF
Fan RPM or estimated speed when commanded
Fan motor current draw (typical: low single-digit amps for many fans; excessive if much higher)
Battery voltage: ~12.0–14.5 V (engine running), significant drop under load may indicate problem
Engine coolant temperature: normal operating range vs rising when fan not functioning

Retrieve and record all freeze-frame data and related codes. Note conditions when code set (ambient temp, vehicle speed, coolant temp).
Perform a visual inspection of the module, heat sink, mounting, and airflow path. Clear any debris and inspect for damage or contamination.
Inspect connector and wiring for corrosion, damaged insulation, loose terminals, or signs of heat damage. Repair as needed.
With a scan tool, monitor module internal temperature while commanding fan on/off. Observe how temperature responds and whether module reduces output.
Measure battery voltage at the module during fan operation. Check for excessive voltage drop under load.
Measure fan motor current while commanded on. If current is abnormally high, disconnect and bench-test the fan motor to confirm motor condition.
If wiring and fan motor are within specification, suspect internal module fault. Replace or recondition the airflow control module per manufacturer procedure.
After repair, clear codes, re-test the system through the temperature range, and confirm no recurrence.

Module electronics degraded or failing and running hot
Fan motor or shroud obstructed causing high current and module overheating
Connector corrosion or high-resistance connection producing heat at the module
Insufficient ambient airflow across module heat-sink due to debris or body damage