Pinpoint Test B: The Engine Does Not Crank - With IA

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

B1 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 DTCs.
  
  Perform INSPECTION AND VERIFICATION procedure .
Was an obvious cause for an observed or reported concern found?
- Yes : Correct the cause as necessary.
- No : GO to B2
B2 CHECK FOR NO KEY DETECTED MESSAGE IN THE MESSAGE CENTER
NOTE: There are certain areas inside the vehicle where the IA key may not be detected and the message center displays NO KEY DETECTED. If the IA key is in the far outside edges of the interior (like in a door map pocket or above a sun visor) it might not be detected. Move the IA key to a different location and try to start the vehicle again.
- Check the message displayed in the message center while pressing the start/stop switch.
Is NO KEY DETECTED displayed?
- Yes : Refer to ANTI THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) to diagnose the NO KEY DETECTED concern.
- No : GO to B3 .
B3 CHECK THE Instrument Panel Cluster (IPC) OPERATION
- Observe the IPC operation while pushing the start/stop switch.
Do some indicators in the IPC illuminate?
- Yes : GO to B5.
- No : GO to B4 .
B4 CHECK FOR COMMUNICATION WITH THE SCAN TOOL
- Carry out the network test using the scan tool.
Does the RFA module and BCM pass the network test?
- Yes : Refer to STEERING COLUMN SWITCHES to diagnose no power in RUN.
- No : Refer to MODULE COMMUNICATIONS NETWORK to diagnose no communication with the RFA module, and BCM .
B5 RETRIEVE DTCs
- Ignition ON.
- Using a diagnostic scan tool, perform the BCM , PCM and TPM self-tests.
Were DTCs retrieved on-demand during self-test?
- Yes : For all BCM or PCM DTCs, REFER to DTC CHARTS .
  For RFA module DTCs, Refer to MULTIFUNCTION ELECTRONIC MODULES .
  
  For TPM module DTCs, Refer to WHEELS AND TIRES .
- No : GO to B6 .
B6 CHECK THE RFA MODULE CRANK FACTOR BRAKE (Crk_Fact_Brk) PID
- Using a diagnostic scan tool, view RFA Parameter Identifications (PIDs).
- While observing the Crk_Fact_Brk PID , apply the brake pedal.
Does the PID read YES when the brake was applied?
- Yes : GO to B10.
- No : GO to B7 .
B7 CHECK THE OPERATION OF THE BRAKE LAMPS
- While observing the brake lamps, apply the brake pedal.
Do the brake lamps illuminate?
- Yes : GO to B8 .
- No : Refer to EXTERIOR LIGHTING to diagnose the brake lamps concern.
B8 CHECK THE BPP SWITCH CIRCUIT FOR VOLTAGE AT THE RFA MODULE
- Ignition OFF.
- Disconnect: RFA Module C2153C .
- Measure the voltage between RFA module C2153C-18 , circuit CCB08 (VT/WH), harness side and ground while pressing the brake pedal.
  
  Fig 1: Measuring Voltage Between RFA Module C2153C-18 Circuit CCB08 (VT/WH) And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B25.
- No : REPAIR circuit CCB08 (VT/WH) for an open. TEST the system for normal operation.
B9 CHECK PCM ISP-R CIRCUIT FOR OPEN
- Ignition OFF.
- Disconnect: PCM C1381B (2.0L) or C175B (3.5L and 3.7L).
- Disconnect: BJB fuse 90.
- For 2.0L equipped vehicles , measure the voltage between PCM C1381B-15 , circuit CBB90 (YE/OG) and BJB fuse 90 socket 1.
  
  Fig 2: Measuring Voltage Between PCM (C1381B-15) Circuit CBB90 (YE/OG) And BJB Fuse 90 Socket (For 2.0L)
  Courtesy of FORD MOTOR CO.
- For 3.5L and 3.7L equipped vehicles , measure the voltage between PCM C175B-42 , circuit CBB90 (YE/OG) and BJB fuse 90 socket 1.
  
  Fig 3: Measuring Voltage Between PCM (C175B-42) Circuit CBB90 (YE/OG) And BJB Fuse 90 Socket (For 3.5L And 3.7L)
  Courtesy of FORD MOTOR CO.
Is the resistance less than 3 ohms?
- Yes : GO to B10 .
- No : REPAIR circuit CBB90 (YE/OG) for an open. TEST the system for normal operation.
B10 CHECK THE PCM IN_GEAR PID
- Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
- Monitor the PCM IN_GEAR PID .
- While observing the IN_GEAR PID , place the gear selector in PARK and then NEUTRAL.
Does the PID read NO in both positions?
- Yes : GO to B11 .
- No : Refer to AUTOMATIC TRANSMISSION - 6F50/6F55 or AUTOMATIC TRANSAXLE/TRANSMISSION - 6F35 to diagnose the TR sensor.
B11 CHECK THE ENGINE CRANKING (ENG_CRANK) PID
- Using a diagnostic scan tool, view PCM Parameter Identifications (PIDs).
- Monitor the PCM ENG_CRANK PID .
- With the gear selector in PARK or NEUTRAL, while pressing the start/stop switch and the brake pedal, monitor the ENG_CRANK PID .
Does the PID change from Inactive to Active?
- Yes : GO to B12 .
- No : GO to B22.
B12 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 TOOL DESCRIPTION . 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.
- Ignition OFF.
- Disconnect: BJB Starter Relay.
- Ignition ON.
- Connect a 12-volt incandescent test light between BJB Starter Relay socket pin 1, circuit CDC12 (YE) and socket pin 2, circuit CDC26 (GY/OG).
  
  Fig 4: Connecting 12-Volt Incandescent Test Light Between BJB Starter Relay Socket Pin 1 Circuit CDC12 And Socket Pin 2 Circuit CDC26 (GY/OG)
  Courtesy of FORD MOTOR CO.
- With the gear selector in PARK or NEUTRAL, while pressing the start/stop switch and the brake pedal, observe the test light.
Does the test light illuminate?
- Yes : GO to B13 .
- No : GO to B20.
B13 CHECK THE VOLTAGE TO THE STARTER RELAY
- Ignition OFF.
- Disconnect: BJB Starter Relay.
- Measure the voltage between BJB starter relay cavity 3, circuit SBB19 (BU/RD), harness side and ground.
  
  Fig 5: Measuring Voltage Between BJB Starter Relay Cavity 3 Circuit SBB19 (BU/RD) Harness Side And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B14 .
- No : VERIFY BJB fuse 19 (30A) is OK. If OK, REPAIR circuit SBB19 (BU/RD) for an open. If not OK, REFER to the SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. TEST the system for normal operation.
B14 CHECK THE STARTER MOTOR OPERATION AT THE STARTER RELAY
- With the gear selector in PARK or NEUTRAL, connect one end of a fused jumper wire to BJB starter relay cavity 3, circuit SBB19 (BU/RD) and momentarily connect the other end of the fused jumper wire to BJB starter relay cavity 5, circuit CDC25 (BN/GN).
  
  Fig 6: Checking Starter Motor Operation At Starter Relay (Neutral)
  Courtesy of FORD MOTOR CO.
Did the starter engage and the engine crank?
- Yes : INSTALL a new starter relay. TEST the system for normal operation.
- No : GO to B15 .
B15 CHECK THE BATTERY GROUND CABLE
- Measure the voltage between the positive battery post and the battery ground cable connection at the engine.
  
  Fig 7: Measuring Voltage Between Positive Battery Post And Battery Ground Cable Connection At Engine
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B16 .
- No : CLEAN or INSTALL new battery cables as necessary. Refer to BATTERY, MOUNTING AND CABLES . TEST the system for normal operation.
B16 CHECK THE STARTER MOTOR GROUND
- Measure the voltage between the positive battery post and the starter motor case.
  
  Fig 8: Measuring Voltage Between Positive Battery Post And Starter Motor Case
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B17 .
- No : CLEAN the starter motor mounting flange and MAKE SURE the starter motor is correctly mounted. TEST the system for normal operation.
B17 CHECK THE VOLTAGE TO THE STARTER MOTOR
- Measure the voltage between starter solenoid ("B" terminal) C197A-1 , circuit SDC02 (RD) and ground.
  
  Fig 9: Measuring Voltage Between Starter Solenoid C197A-1 Circuit SDC02 (RD) And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B18 .
- No : CLEAN or INSTALL new battery cables as necessary. Refer to BATTERY, MOUNTING AND CABLES . TEST the system for normal operation.
B18 CHECK THE STARTER MOTOR FOR CORRECT OPERATION
- Connect one end of a fused jumper wire to starter solenoid ("B" terminal) C197A-1 , circuit SDC02 (RD) and momentarily connect the other end of the fused jumper wire to starter solenoid ("S" terminal) C197B-1 , circuit CDC25 (BN/GN).
  
  Fig 10: Connecting One End Of Fused Jumper Wire To Starter Solenoid B Terminal C197A-1, Circuit SDC02 (RD) And S Terminal C197B-1, Circuit CDC25 (BN/GN)
  Courtesy of FORD MOTOR CO.
Did the starter engage and the engine crank?
- Yes : GO to B19 .
- No : INSTALL a new starter motor. REFER to STARTER MOTOR - 2.0L GTDI or STARTER MOTOR - 3.5L, 3.7L . TEST the system for normal operation.
B19 CHECK FOR START INPUT AT THE STARTER
- Connect: BJB Starter Relay.
- Disconnect: Starter Solenoid ("S" terminal) C197B .
- Start the engine.
- With the gear selector in PARK or NEUTRAL, measure the voltage between the starter solenoid ("S" terminal) C197B-1 , circuit CDC25 (BN/GN) and ground, while pressing the brake and the start/stop switch.
  
  Fig 11: Measuring Voltage Between Starter Solenoid C197B-1 Circuit CDC25 (BN/GN) And Ground
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : CLEAN the starter solenoid ("S" terminal) and connector C197B-1 . CHECK the wiring and the starter motor for a loose or intermittent connection. TEST the system for normal operation.
- No : REPAIR circuit CDC25 (BN/GN) for an open. TEST the system for normal operation.

B20 CHECK THE PCM START CIRCUITS FOR A SHORT TO GROUND

Disconnect: PCM C1381B (2.0L) or C175B (3.5L and 3.7L).

For 2.0L equipped vehicles , measure the resistance between PCM C1381B , harness side and ground as follows:

PCM Connector-Pin	Circuit
C1381B-9	CDC12 (YE)
C1381B-11	CDC26 (GY/OG)

Fig 12: Measuring Resistance Between PCM C1381B Harness Side And Ground (For 2.0L)
Courtesy of FORD MOTOR CO.

For 3.5L and 3.7L equipped vehicles , measure the resistance between PCM C175B , harness side and ground as follows:

PCM Connector-Pin	Circuit
C175B-7	CDC12 (YE)
C175B-37	CDC26 (GY/OG)

Fig 13: Measuring Resistance Between PCM C175B Harness Side And Ground (For 3.5L And 3.7L)
Courtesy of FORD MOTOR CO.

Are the resistances greater than 10, 000 ohms?

Yes : GO to B21 .
No : REPAIR the affected circuit for a short to ground. TEST the system for normal operation.

B21 CHECK THE PCM START CIRCUITS FOR AN OPEN

For 2.0L equipped vehicles , measure the resistance between PCM C1381B , harness side and the BJB starter relay cavity as follows:

PCM Connector-Pin	Circuit	BJB
C1381B-9	CDC12 (YE)	BJB starter relay cavity 1
C1381B-11	CDC26 (GY/OG)	BJB starter relay cavity 2

Fig 14: Measuring Resistance Between PCM C1381B And BJB Starter Relay Cavity (For 2.0L)
Courtesy of FORD MOTOR CO.

For 3.5L and 3.7L equipped vehicles , measure the resistance between PCM C175B , harness side and the BJB starter relay cavity as follows:

PCM Connector-Pin	Circuit	BJB
C175B-7	CDC12 (YE)	BJB starter relay cavity 1
C175B-37	CDC26 (GY/OG)	BJB starter relay cavity 2

Fig 15: Measuring Resistance Between PCM C175B And BJB Starter Relay Cavity (For 3.5L And 3.7L)
Courtesy of FORD MOTOR CO.

Are the resistances less than 3 ohms?

Yes : GO to B24.
No : REPAIR the affected circuit for an open. TEST the system for normal operation.

B22 CHECK THE START CIRCUIT FOR VOLTAGE AT THE PCM
- Ignition OFF.
- Disconnect: PCM C1381B (2.0L) or C175B (3.5L and 3.7L).
- Ignition ON.
- For 2.0L equipped vehicles , measure the voltage between PCM C1381B-17 , circuit CDC35 (BU/WH) and ground, while pressing the brake and the start/stop switch.
  
  Fig 16: Measuring Voltage Between PCM (C1381B-17) Circuit CDC35 (BU/WH) And Ground (For 2.0L)
  Courtesy of FORD MOTOR CO.
- For 3.5L and 3.7L equipped vehicles , measure the voltage between PCM C175B-16 , circuit CDC35 (BU/WH) and ground, while pressing the brake and the start/stop switch.
  
  Fig 17: Measuring Voltage Between PCM (C175B-16) Circuit CDC35 (BU/WH) And Ground (For 3.5L And 3.7L)
  Courtesy of FORD MOTOR CO.
Is the voltage greater than 11 volts?
- Yes : GO to B24.
- No : GO to B23 .
B23 CHECK THE BCM ENGINE START STOP BUTTON CIRCUIT 1 (START_STOP_1) PID
- Using a diagnostic scan tool, view BCM Parameter Identifications (PIDs).
- Monitor the START_STOP_1 PID while pressing the start/stop switch.
Does the PID read correctly?
- Yes : REPAIR circuits CDC35 (BU/WH)/CPK34 (BN/VT) for an open. TEST the system for normal operation.
- No : Refer to STEERING COLUMN SWITCHES to diagnose the start/stop switch. TEST the system for normal operation.
B24 CHECK FOR CORRECT PCM OPERATION
- Ignition OFF.
- Disconnect all the PCM connectors.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the PCM connectors and make sure they seat correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes : INSTALL a new PCM . Refer to ELECTRONIC ENGINE CONTROLS . CLEAR all DTCs in all modules. TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.
B25 CHECK FOR CORRECT RFA MODULE OPERATION
- Ignition OFF.
- Disconnect all the RFA module connectors.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the RFA module connectors and make sure they seat correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
- Yes : INSTALL a new RFA module. Refer to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
- No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.