Pinpoint Test A : Engine Does Not Crank

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

A1 PERFORM INSPECTION AND VERIFICATION

NOTE: Make sure battery voltage is greater than 12.2 volts prior to and during this pinpoint test.

NOTE: If it is necessary to leave the battery charger connected during testing, do not leave it on its highest or boost setting. The highest settings can exceed 16 volts, resulting in false test results and setting of Diagnostic Trouble Codes (DTCs).
- Perform Inspection and Verification procedure in this article.
Was an obvious cause for an observed or reported concern found?

Yes Correct the cause as necessary.

No GO to A2

A2 CHECK FOR NO KEY DETECTED MESSAGE IN THE MESSAGE CENTER
- Check the message center while pressing the Engine Start/Stop button.
Is No Key Detected displayed?

Yes Diagnose "No Key Found" Message. Refer to: Passive Anti-Theft System (PATS) .

No GO to A3

A3 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) OPERATION
- Observe the IPC operation while pressing the Engine Start/Stop button.
Do some indicators in the IPC illuminate?

Yes GO to A5

No GO to A4

A4 CHECK FOR COMMUNICATION WITH THE SCAN TOOL
- Ignition ON.
- Using a diagnostic scan tool, perform the Network Test.
Does the BCM, IPC and RFA module pass the Network Test?

Yes Diagnose No Power in On. Refer to: Steering Wheel and Column Electrical Components .

No REFER to: Communications Network .

A5 RETRIEVE DTCS

Ignition ON.

Using a diagnostic scan tool, perform self-tests for:
- RFA
- BCM
- PCM

Were Diagnostic Trouble Codes (DTCs) retrieved on-demand during self-test?

Yes	For all RFA module Diagnostic Trouble Codes (DTCs), REFER to: Remote Function Actuator (RFA) Module . For PCM DTC P0830, GO to A19For PCM DTC P06E9, GO to A6

GO to A6

A6 CHECK THE PCM (POWERTRAIN CONTROL MODULE) CLUTCH PEDAL AT OR NEAR BOTTOM OF TRAVEL (CPP_BOT) PID (PARAMETER IDENTIFICATION)
- Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
- Monitor the PCM CPP_BOT PID while fully applying the clutch pedal and release.
Does the PID change from NO to YES when the clutch pedal is fully applied?

Yes GO to A7

No GO to A19

A7 CHECK THE PCM (POWERTRAIN CONTROL MODULE) ENGINE CRANKING (ENG_CRANK) PID (PARAMETER IDENTIFICATION)
- Make sure the transmission is in NEUTRAL.
- Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
- Monitor the PCM ENG_CRANK PID press the Engine Start/Stop button and the clutch pedal.
Does the PID change from Inactive to Active?

Yes GO to A8

No GO to A18

A8 CHECK THE STARTER RELAY CONTROL OPERATION

NOTE: The following step uses a test light to simulate normal circuit loads. Use only the test light recommended in the Special Tools table at the beginning of this article. To avoid connector terminal damage, use the Flex Probe Kit for the test light probe connection to the vehicle. Do not use the test light probe directly on any connector.

Remove the BJB starter relay.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY BJB starter relay pin 1	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY BJB starter relay pin 2

Make sure the transmission is in NEUTRAL.

While pressing the Engine Start/Stop button and the clutch pedal, observe the test light.

Does the test light illuminate when the ignition switch - push button start and brake pedal are pressed?

Yes

GO to A9

GO to A16

A9 CHECK THE VOLTAGE TO THE STARTER RELAY

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY BJB starter relay pin 3	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to A10

No	VERIFY BJB fuse 10 (30A) is OK. If OK, REPAIR the circuit for an open. If not OK, REFER to the OEM Electrical Wiring Diagram Introduction to identify the possible causes of the circuit short.

A10 CHECK THE STARTER MOTOR OPERATION AT THE STARTER RELAY

Ignition OFF.

Make sure the transmission is in NEUTRAL.

Measure:

Positive Lead	Measurement / Action	Negative Lead
BJB starter relay pin 3	Courtesy of FORD MOTOR COMPANY	BJB starter relay pin 5

Did the starter engage and the engine crank?

Yes	INSTALL a new starter relay.

GO to A11

A11 CHECK THE BATTERY GROUND CABLE

Measure:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY	Ground G100

Is the voltage greater than 11 volts?

Yes

GO to A12

No	CLEAN or INSTALL a new negative battery cable as necessary. Refer to: Battery Monitoring Sensor .

A12 CHECK THE STARTER MOTOR GROUND

Measure:

Positive Lead	Measurement / Action	Negative Lead
Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY	Courtesy of FORD MOTOR COMPANY Starter motor case

Is the voltage greater than 11 volts?

Yes

GO to A13

No	CLEAN the starter motor mounting flange and MAKE SURE the starter motor is correctly mounted. Refer to: Starter Motor .

A13 CHECK THE VOLTAGE TO THE STARTER MOTOR

Measure:

Positive Lead	Measurement / Action	Negative Lead
C197A-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to A14

No	CLEAN or INSTALL a new positive battery cable as necessary.

A14 CHECK THE STARTER MOTOR FOR CORRECT OPERATION
- Ignition OFF.
- Perform Starter Motor - Positive Circuit Test .
Was an obvious cause found?

Yes Correct the cause as necessary.

No GO to A15

A15 CHECK FOR START INPUT AT THE STARTER

Install the BJB starter relay.

Disconnect Starter C197B-1 ("S"-terminal).

Press the Engine Start/Stop button and the clutch pedal.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C197B-1	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes	CLEAN the starter solenoid "S" terminal and starter solenoid connector. CHECK the wiring and the starter motor for a loose or intermittent connection.

No	REPAIR the circuit for an open.

A16 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Disconnect ACM C240A .

Disconnect PCM C1915B .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-43	Courtesy of FORD MOTOR COMPANY	Ground
C1915B-62	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes

GO to A17

No	REPAIR the affected circuit.

A17 CHECK THE PCM (POWERTRAIN CONTROL MODULE) STARTER RELAY CIRCUITS FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-43	Courtesy of FORD MOTOR COMPANY	BJB start relay pin 2
C1915B-62	Courtesy of FORD MOTOR COMPANY	BJB start relay pin 1

Are the resistances less than 3 ohms?

Yes

GO to A23

No	REPAIR the affected circuit.

A18 CHECK THE CRANK DETECT CIRCUIT FOR VOLTAGE AT THE PCM (POWERTRAIN CONTROL MODULE)

Ignition OFF.

Disconnect PCM C1915B .

While pressing the Engine Start/Stop button, measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-47	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage greater than 11 volts?

Yes

GO to A23

No	REPAIR the circuit.

A19 CHECK THE CPP (CLUTCH PEDAL POSITION) SWITCH

Ignition OFF.

Disconnect PCM C1915B .

While fully applying the clutch pedal, measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-30	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to A23

GO to A20

A20 CHECK THE CPP (CLUTCH PEDAL POSITION) GROUND CIRCUIT FOR AN OPEN

Disconnect CPP switch C2353 .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2353-2	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to A21

No	REPAIR the circuit.

A21 CHECK THE CPP (CLUTCH PEDAL POSITION) SWITCH CIRCUIT FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-30	Courtesy of FORD MOTOR COMPANY	C2353-1

Is the resistance less than 3 ohms?

Yes

GO to A22

No	REPAIR the circuit.

A22 CHECK THE CLUTCH BOTTOM TRAVEL CIRCUIT FOR A SHORT TO GROUND

Ignition OFF.

Disconnect RFA C3503B .

Disconnect PCM C1915B .

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1915B-30	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to A23

No	REPAIR the circuit.

A23 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.

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, INSTALL a new PCM. Refer to: Powertrain Control Module (PCM) .

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.