P0A96

Code

Generic P — Powertrain

Hybrid/EV Battery Pack Cooling Fan 2 Control Circuit/Open

Brand: Generic

Type: P — Powertrain

Views: UK: 18 EN: 25 RU: 22

AI status

Completed

ready

Completed 100%

Page language: EN

Open or broken wiring in fan 2 control circuit
Disconnected, corroded or damaged connector(s) at fan or control module
Blown fuse or failed relay in fan power/control supply
Failed fan motor (internal open) or motor harness short/open
Faulty battery/thermal management control module (incorrect driving of fan output)
Water intrusion, physical damage or pinched wiring causing open circuit

Battery cooling fan 2 does not run when commanded
Battery temperature high or battery thermal warnings/messages
Reduced charge/discharge current or limited electric drive due to thermal protection
Cooling fan(s) run only intermittently or not at all
Diagnostic trouble light or hybrid system warning on dash

Retrieve freeze-frame and live data with a scan tool; confirm P0A96 and related freeze data
Visually inspect fan 2 connector(s), wiring, and harness for corrosion, damage, water entry or pinching
Check fuses and relays related to battery cooling fan circuits
Command fan 2 ON/OFF from a compatible scan tool and observe behavior
Backprobe fan 2 connector while commanding and measure supply and control signals
Perform continuity check between fan connector and control module for open circuits

Supply/ignition voltage to fan circuit: typically near vehicle battery voltage when key on (≈11–14 V)
Control output: typically a switched/PWM signal from control module with 0–12 V amplitude, duty cycle 0–100% when commanded
PWM frequency: varies by manufacturer; commonly in the low hundreds of Hz (e.g. 100–500 Hz)
Fan motor DC resistance: typically low (often
Run current: varies by motor design; expect several amps under normal running and higher when stalled (use manufacturer spec)

Confirm and record the DTC and any related codes with a scan tool; note operating conditions and freeze frame data
Visually inspect wiring, connectors and fan assembly for obvious damage, corrosion, or foreign-object interference
Check fuses and relays for the fan circuits; replace if blown and evaluate cause
With a multimeter, verify battery/supply voltage present at the fan power feed with ignition on
Use a scan tool to command fan 2 ON while backprobing the fan connector: verify control signal and supply voltage at the connector
If supply is correct but control signal is absent, check continuity between the control module and fan connector; repair any open circuit