Pinpoint Test BA: P2533:62

WARNING: This page is about a different car, the 2021 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

Normal Operation and Fault Conditions

REFER to: Electric Powertrain Control - Component Location .

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
SOBDMC P2533:62	Ignition Switch On/Start Position Circuit: Signal Compare Failure	This DTC sets when the module is unable to shut off during key-off.

Possible Sources

Wiring, terminals or connectors
BCM issue

BA1 CHECK THE BATTERY AND CHARGING SYSTEM

Check the 12 volt battery and charging system voltages. REFER to: Charging System - 2.7L EcoBoost (238kW/324PS)/3.5L EcoBoost (BM) - System Operation and Component Description .

Are the battery and charging system voltages within specification?

Yes

GO to BA2

No	REPAIR as necessary. REFER to: Charging System - 2.7L EcoBoost (238kW/324PS)/3.5L EcoBoost (BM) - System Operation and Component Description . CLEAR the Inverter System Controller (ISC) DTCs. REPEAT the self-test.

BA2 CHECK THE ISP-R VPWR CIRCUIT FOR AN OPEN

Ignition OFF.

Disconnect BCMC C1035B.

Disconnect Inverter System Controller (ISC) C1458A.

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1035B-8	Courtesy of FORD MOTOR COMPANY	C1458A-K2

Is the resistance less than 5 ohms?

Yes

GO to BA3

No	REPAIR the open circuit.

BA3 CHECK THE ISP-R CIRCUIT FOR A SHORT TO VOLTAGE

Ignition ON.

Measure and record:

Positive Lead	Measurement / Action	Negative Lead
C1458A-K2	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the short circuit. CLEAR the DTCs and REPEAT the self-test.

GO to BA4

BA4 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) P2533:62

Ignition OFF.

Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the BCMC connectors. Make sure they seat and latch correctly.

Reconnect the Inverter System Controller (ISC) connectors. Make sure they seat and latch correctly.

Ignition ON.

Ignition OFF.

Wait two minutes.

Ignition ON.

Using a diagnostic scan tool, clear the BCMC and Inverter System Controller (ISC).

Ignition OFF.

Start the engine.

Using a diagnostic scan tool, run the BCMC and Inverter System Controller (ISC) self-tests.

Is DTC P2533:62 present?

Yes	REFER to: Powertrain Control Module (PCM) Input and Output Controls . Pinpoint Test Z.

No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.