Pinpoint Test D : P2535

WARNING: This page is about a different variant/trim than selected.

D1 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Ignition ON.
- Using a diagnostic scan tool, perform PCM self-test.
Is PCM DTC P2535 present?

Yes GO to D2

No For all other PCM Diagnostic Trouble Codes (DTCs), REFER to: Electronic Engine Controls .

D2 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE PCM (POWERTRAIN CONTROL MODULE) DISCONNECTED

Ignition OFF.

Disconnect PCM C1381B .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1381B-47	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes

GO to D3

GO to D6

D3 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE IGNITION SWITCH - PUSH BUTTON START DISCONNECTED

Ignition OFF.

Disconnect Ignition switch - push button start C2195 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1381B-47	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes

GO to D4

No	INSTALL a new ignition switch - push button start. REFER to: Ignition Switch .

D4 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE RFA (REMOTE FUNCTION ACTUATOR) DISCONNECTED

Ignition OFF.

Disconnect RFA .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1381B-47	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes

GO to D5

No	Replace the RFA module, REFER to: Remote Function Actuator (RFA) Module .

D5 CHECK THE CRANK DETECT CIRCUIT FOR A SHORT TO VOLTAGE WITH THE BCM (BODY CONTROL MODULE) DISCONNECTED

Ignition OFF.

Disconnect BCM C2280C .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1381B-47	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	Repair the circuit.

No	Refer to BCM GUIDED ROUTINE TESTING

D6 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION

Ignition OFF.

Disconnect and inspect all PCM connectors.

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

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

Reconnect all connectors. Make sure they seat and latch correctly.

Check and replace BCM fuse 78 if necessary.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, Refer to PCM GUIDED ROUTINE TESTING

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.