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Contents Wiring diagrams Section: Ignition Switch/steering Lock All sections

Steering Column Switches: Diagnosis Ford Escape II

Ignition Switch/steering Lock 15 illustrations ~5678 words

Inspection and Verification

  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage. VISUAL INSPECTION CHART Mechanical Electrical Ignition key Multifunction switch Steering column shrouds Ignition lock cylinder Ignition switch Steering column lock module Audio Control Module (ACM) Starter relay Ignition switch Park range switch (part of the selector lever) Battery Junction Box (BJB) fuse 35 (10A) Smart Junction Box (SJB) fuse 27 (20A) SJB Wiring, terminals or connectors PCM One-Touch Integrated Start (OTIS) diode NOTE: For multifunction switch concerns, refer to one of the following parts: For exterior lighting, refer to «EXTERIOR LIGHTING»(ref-344079) . For wipers and washers, refer to «WIPERS AND WASHERS»(ref-344102) .
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
  5. If the scan tool does not communicate with the VCM: check the VCM connection to the vehicle. check the scan tool connection to the VCM. refer to «MODULE COMMUNICATIONS NETWORK»(ref-344076) , No Power To The Scan Tool, to diagnose no power to the scan tool.
  6. If the scan tool does not communicate with the vehicle: verify the ignition is ON. verify the scan tool operation with a known good vehicle. refer to «MODULE COMMUNICATIONS NETWORK»(ref-344076) to diagnose no response from the PCM.
  7. Carry out the network test. If the scan tool responds with no communication for one or more modules, refer to «MODULE COMMUNICATIONS NETWORK»(ref-344076) . If the network test passes, retrieve and record continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the SJB.
  9. If the DTCs retrieved are related to the concern, go to the «SMART JUNCTION BOX (SJB) DTC CHART»(ref-344080-S14474660812009101600000) . For all other DTCs, refer to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) .
  10. If no DTCs related to the concern are retrieved, GO to «SYMPTOM CHART»(ref-344080-S41142962662009101600000) .

Smart Junction Box (SJB) DTC Chart

DTCDescriptionAction
B2A20Ignition stuck in STARTGO to PINPOINT TEST E .
B2844Ignition faultGO to PINPOINT TEST F .
U2472Unexpected Ignition StateGO to PINPOINT TEST F .
All Other SJB DTCsREFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .

SMART JUNCTION BOX (SJB) DTC CHART

Symptom Chart

ConditionPossible SourcesAction
No communication with the Smart Junction Box (SJB)Wiring, terminals or connectors SJBREFER to MULTIFUNCTION ELECTRONIC MODULES to continue diagnosis of the SJB.
No power in all ignition switch positionsSJB Fuse Wiring, terminals or connectors Ignition switchGO to PINPOINT TEST A .
No power in ACCWiring, terminals or connectors Ignition switch SJBGO to PINPOINT TEST B .
No power in RUNPCM Fuse(s) Wiring, terminals or connectors Ignition switch SJBGO to PINPOINT TEST C .
No power in STARTPCM Wiring, terminals or connectors Ignition switch SJB One-Touch Integrated Start (OTIS) diodeGO to PINPOINT TEST D .
The ignition key is hard to turnIgnition lock cylinder Ignition key Ignition switchGO to the IGNITION SWITCH - MECHANICAL COMPONENT TEST .
The ignition key cannot be returned to the OFF positionWiring, terminals or connectors Key removal inhibit solenoid (part of the ignition switch) Park range switch (part of the selector lever) Ignition lock cylinder Steering column lock moduleGO to PINPOINT TEST G .
The ignition key can be turned to the OFF position when the selector lever is not in PARKWiring, terminals or connectors Key removal inhibit solenoid (part of the ignition switch) Park range switch (part of the selector lever)GO to PINPOINT TEST H .
The multifunction switch does not operate correctlyMultifunction switch SJBFor a concern with the exterior lighting, REFER to EXTERIOR LIGHTING . For a concern with the wipers and washers, REFER to WIPERS AND WASHERS .

SYMPTOM CHART

Pinpoint Test A: No Power In All Ignition Switch Positions

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 1

Scheme 1: PINPOINT TEST A: NO POWER IN ALL IGNITION SWITCH POSITIONS
Scheme 1: PINPOINT TEST A: NO POWER IN ALL IGNITION SWITCH POSITIONS

Scheme 2

Scheme 2
Scheme 2
  1. A1 CHECK FOR VOLTAGE AT SJB FUSE 27 (20A) Ignition OFF. Disconnect: SJB Fuse 27 (20A). Measure the voltage between SJB fuse 27, input side and ground. Is the voltage greater than 10 volts? Yes: GO to A2 . No: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . TEST the system for normal operation.
  2. A2 CHECK FOR VOLTAGE TO THE IGNITION SWITCH Connect: SJB fuse 27 (20A). Disconnect: Ignition Switch Measure the voltage between ignition switch C250-4, circuit SBP27 (BU/RD), harness side and ground. Is the voltage greater than 10 volts? Yes: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: VERIFY SJB fuse 27 (20A) is OK. If OK, REPAIR circuit SBP27 (BU/RD). If not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the possible causes of the circuit short. TEST the system for normal operation.

PINPOINT TEST B: NO POWER IN ACC

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 3

Scheme 3: PINPOINT TEST B: NO POWER IN ACC
Scheme 3: PINPOINT TEST B: NO POWER IN ACC

Scheme 4

Scheme 4
Scheme 4
  1. B1 CHECK THE ACC CIRCUIT FOR AN OPEN NOTE: To access the SJB connector, the floor console must be removed. Ignition OFF. Disconnect: SJB C2280A. Disconnect: Ignition Switch C250. Measure the resistance between ignition switch C250-6, circuit CDC33 (VT/GN), harness side and SJB C2280A-3 circuit CDC33 (VT/GN), harness side. Is the resistance less than 5 ohms? Yes: GO to B2 . No: REPAIR circuit CDC33 (VT/GN). TEST the system for normal operation.
  2. B2 CHECK THE ACC CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ignition switch C250-6, circuit CDC33 (VT/GN), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to B3 . No: REPAIR circuit CDC33 (VT/GN). TEST the system for normal operation.
  3. B3 CHECK THE IGNITION SWITCH Carry out the Ignition Switch - Electrical Component Test. Refer to «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) for component testing. Is the ignition switch OK? Yes: GO to B4 . No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation.
  4. B4 CHECK FOR CORRECT SJB OPERATION Check SJB C2280A for: corrosion. pushed-out pins. spread terminals. Connect: SJB C2280A. Make sure the connector is seated correctly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . 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. TEST the system for normal operation.

Pinpoint Test C: No Power in RUN

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 5

Scheme 5: PINPOINT TEST C: NO POWER IN RUN
Scheme 5: PINPOINT TEST C: NO POWER IN RUN
  1. C1 ISOLATE THE RUN CIRCUIT Ignition In ACC. Operate the windshield wipers. Do the windshield wipers operate? Yes: GO to C2 . No: GO to «PINPOINT TEST B»(ref-344080-S32806403352009101600000) .
  2. C2 CHECK THE RUN/START CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: All vehicles: Ignition Switch C250. Disconnect: All vehicles: SJB C2280B. Disconnect: All vehicles: SJB C2280E. Disconnect: All vehicles: PCM C175B. Disconnect: All vehicles: BJB Fuse 35 (5A). Disconnect: Late build non-hybrid and all hybrid vehicles: BJB Fuse 25 (5A). Measure the resistance between ignition switch C250-1, circuit CDC34 (WH/OG), harness side and: All vehicles: SJB C2280B-45, circuit CDC34 (WH/OG), harness side. All vehicles: SJB C22880E-1, circuit CDC34 (WH/OG), harness side. All vehicles: PCM CC175B-42, circuit CDC34 (WH/OG), harness side. All vehicles: BJB fuse 35 (5A), circuit CDC34 (WH/OG), input side. Late build non-hybrid and all hybrid vehicles: BJB fuse 25 (5A), circuit CDC34 (WH/OG), input side. Are the resistances less than 5 ohms? Yes: All vehicles: VERIFY BJB fuse 35 (5A) is OK. Late build non-hybrid and all hybrid vehicles: VERIFY BJB fuse 25 (5A) is OK. All vehicles: If the fuse is OK, GO to C3 . If the fuse is not OK, REFER to the «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) to identify the cause of the circuit short. TEST the system for normal operation. No: REPAIR circuit CDC34 (WH/OG). TEST the system for normal operation.
  3. C3 CHECK THE RUN/START CIRCUIT FOR SHORT TO GROUND Measure the resistance between ignition switch C250-1, circuit CDC34 (WH/OG), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to C4 . No: REPAIR circuit CDC34 (WH/OG). TEST the system for normal operation.
  4. C4 CHECK THE PCM FOR SHORT TO GROUND Connect: PCM C175B. Measure the resistance between ignition switch C250-1, circuit CDC34 (WH/OG), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to C5 . No: GO to C6 .
  5. C5 CHECK THE SJB FOR SHORT TO GROUND Connect: SJB C2280B. Connect: SJB 32280E. Measure the resistance between ignition switch C250-1, circuit CDC34 (WH/OG), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: INSPECT the ignition switch connector for pushed-out pins, spread and bent terminals. REPAIR as necessary. If the connector is OK, INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: GO to C7 .
  6. C6 CHECK FOR CORRECT PCM OPERATION Disconnect: All PCM Connectors. Check the connectors for: corrosion. spread terminals. pushed-out pins. Connect: All PCM Connectors. Connect: All SJB Connectors. Connect: All SJB Fuses. Connect: Ignition Switch C250. Make sure the connectors seat properly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new PCM. 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. TEST the system for normal operation.
  7. C7 CHECK FOR CORRECT SJB OPERATION Disconnect: SJB C2280B. Disconnect: SJB C2280E. Check the connectors for: corrosion. spread terminals. pushed-out pins. Connect: All PCM Connectors. Connect: All SJB Connectors. Connect: All SJB Fuses. Connect: Ignition Switch C250. Make sure the connectors seat properly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . 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. TEST the system for normal operation.

Pinpoint Test D: No Power in START

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 6

Scheme 6: PINPOINT TEST D: NO POWER IN START
Scheme 6: PINPOINT TEST D: NO POWER IN START
  1. D1 ISOLATE THE START CIRCUIT Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Ignition ON. Monitor the Electronic Control Unit (ECU) derived ignition state-RUN (IGN R ECU) PID. Does the PID display "yes" with the ignition in the RUN position? Yes: GO to D2 . No: GO to «PINPOINT TEST C»(ref-344080-S00198225962009101600000) .
  2. D2 ISOLATE THE IGNITION SWITCH Ignition OFF. Carry out the Ignition Switch - Electrical Component Test. Refer to «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) for component testing. Does the ignition switch pass the test? Yes: GO to D3 . No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation.
  3. D3 CHECK THE START CIRCUIT FOR AN OPEN Ignition OFF. Disconnect: All vehicles: Ignition Switch C250. Disconnect: All vehicles: PCM C1755B. Disconnect: Hybrid vehicles: SJB C2280B. Disconnect: Non-hybrid vehicles: OTIS Diode. Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and: Non-hybrid vehicles: OTIS diode, circuit CDC35 (BU/WH), input side. Non-hybrid vehicles: PCM C175B-16, circuit CDC35 (BU/WH), harness side. Hybrid vehicles: SJB C2280N-32, circuit CDC35 (BU/WH), harness side. Hybrid vehicles: PCM C175B-39, circuit CDC35 (BU/WH), harness side. Are the resistances less than 5 ohms? Yes: GO to D4 . No: REPAIR circuit CDC35 (BU/WH). TEST the system for normal operation.
  4. D4 CHECK THE START CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to D5 . No: REPAIR circuit CDC35 (BU/WH). TEST the system for normal operation.
  5. D5 CHECK THE PCM FOR A SHORT TO GROUND Connect: PCM C175B. Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: Hybrid vehicles: GO to D6 . Non-hybrid vehicles: GO to D8 . No: GO to D7 .
  6. D6 CHECK THE SJB FOR A SHORT TO GROUND Connect: SJB C2280B. Measure the resistance between ignition switch C250-7, circuit CDC35 (BU/WH), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: GO to D12 .
  7. D7 CHECK FOR CORRECT PCM OPERATION Disconnect: All PCM Connectors. Check the connectors for: corrosion. spread terminals. pushed-out pins. Connect: All PCM Connectors. Connect: All SJB Connectors. Connect: Ignition Switch C250. Make sure the connectors seat properly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new PCM. REFER to «ELECTRONIC ENGINE CONTROLS - HYBRID»(ref-344103) . 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. TEST the system for normal operation.
  8. D8 CHECK THE OTIS CIRCUIT FOR AN OPEN Disconnect: SJB C2280B. Disconnect: Starter Relay. Measure the resistance between OTIS diode, circuit CDC54 (WH/GN), output side and: SJB C2280B-32, circuit CDC54 (WH/GN), harness side. PCM C175B-37, circuit CDC54 (WH/GN), harness side. starter relay, circuit CDC54 (WH/GN), cavity 2. Is the resistance less than 5 ohms? Yes: GO to D9 . No: REPAIR circuit CDC54 (WH/GN). TEST the system for normal operation.
  9. D9 CHECK THE OTIS CIRCUIT FOR A SHORT TO GROUND Measure the resistance between OTIS diode, circuit CDC54 (WH/GN), output side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to D10 . No: REPAIR circuit CDC54 (WH/GN). TEST the system for normal operation.
  10. D10 ISOLATE THE SJB Connect: SJB C2280B. Measure the resistance between OTIS diode, circuit CDC54 (WH/GN), output side and ground. Is the resistance greater than 10,000 ohms? Yes: GO to D11 . No: GO to D12 .
  11. D11 ISOLATE THE PCM Connect: PCM C175B. Measure the resistance between OTIS diode, circuit CDC54 (WH/GN), output side and ground. Is the resistance greater than 10,000 ohms? Yes: INSTALL a new OTIS diode. TEST the system for normal operation. No: GO to D13 .
  12. D12 CHECK FOR CORRECT SJB OPERATION Disconnect: SJB C2280B. Check the connectors for: corrosion. spread terminals. pushed-out pins. Connect: All PCM Connectors. Connect: All SJB Connectors. Connect: OTIS Diode. Connect: Ignition Switch C250. Make sure the connectors seat properly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . 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. TEST the system for normal operation.
  13. D13 CHECK THE PCM FOR CORRECT OPERATION Disconnect: All PCM Connectors. Check the connectors for: corrosion. spread terminals. pushed-out pins. Connect: All PCM Connectors. Connect: All SJB Connectors. Connect: OTIS Diode. Connect: Ignition Switch C250. Make sure the connectors seat properly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new PCM. 2.5L engine: REFER to «ELECTRONIC ENGINE CONTROLS - 2.5L»(ref-344104) . 3.0L engine: REFER to «ELECTRONIC ENGINE CONTROLS - 3.0L (4V)»(ref-344105) . 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. TEST the system for normal operation.

Pinpoint Test E: B2A20

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 7

Scheme 7: PINPOINT TEST E: B2A20
Scheme 7: PINPOINT TEST E: B2A20

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9

Scheme 10

Scheme 10
Scheme 10
  1. E1 CHECK THE IGNITION SWITCH MECHANICAL FUNCTION Inspect the ignition switch for correct mechanical function. Refer to the «IGNITION SWITCH - MECHANICAL COMPONENT TEST»(ref-344080-S06353802632009101600000) . Did the ignition switch pass the component test? Yes: GO to E2 . No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . CLEAR the DTCs. REPEAT the self-test.
  2. E2 CHECK THE IGNITION SWITCH ELECTRICAL FUNCTION Ignition OFF. Disconnect: Ignition Switch C250. Carry out the Ignition Switch component test. Refer to «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) for component testing. Did the ignition switch pass the component test? Yes: GO to E3 . No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . CLEAR the DTCs. REPEAT the self-test.
  3. E3 CHECK THE SJB START POWER OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Connect: Ignition Switch C Disconnect: SJB Fuse 28 (5A). Ignition ON. Measure the voltage between SJB fuse 28 (5A), circuit CBP28 (GY/VT), output side and ground. Is any voltage present? Yes: GO to E11 . No: Non-Hybrid: GO to E4 . Hybrid: GO to E9 .
  4. E4 CHECK THE SJB START POWER INPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB C2280B. Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC54 (WH/GN), harness side and ground. Is any voltage present? Yes: GO to E5 . No: GO to E13 .
  5. E5 ISOLATE THE SJB START POWER CIRCUIT Ignition OFF. Disconnect: Battery Junction Box (BJB) One-Touch Integrated Start (OTIS) Diode. Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC54 (WH/GN), harness side and ground. Is any voltage present? Yes: GO to E6 . No: GO to E8 .
  6. E6 CHECK THE PCM IGNITION SWITCH INPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: Starter Relay. Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC54 (WH/GN), harness side and ground. Is any voltage present? Yes: GO to E7 . No: INSTALL a new starter relay. CLEAR the DTCs. REPEAT the self-test.
  7. E7 CHECK THE PCM FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: PCM C175B. Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC54 (WH/GN), harness side and ground. Is any voltage present? Yes: REPAIR circuit CDC54 (WH/GN). CLEAR the DTCs. REPEAT the self-test. No: GO to E15 .
  8. E8 CHECK THE IGNITION SWITCH START POWER OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: PCM C175B. Ignition ON. Measure the voltage between BJB OTIS diode, circuit CDC35 (BU/WH), input side and ground. Is any voltage present? Yes: REPAIR circuit CDC35 (BU/WH). CLEAR the DTCs. REPEAT the self-test. No: GO to E15 .
  9. E9 CHECK THE SJB IGNITION SWITCH INPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB C2280B. Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC35 Is any voltage present? Yes: GO to E10 . No: GO to E13 .
  10. E10 ISOLATE THE PCM Ignition OFF. Disconnect: PCM C1 Ignition ON. Measure the voltage between SJB C2280B-32, circuit CDC35 (BU/WH), harness side and ground. Is any voltage present? Yes: REPAIR circuit CDC35 (BU/WH). CLEAR the DTCs. REPEAT the self-test. No: GO to E15 .
  11. E11 ISOLATE THE ACM Ignition OFF. Disconnect: ACM C240A. Ignition ON. Measure the voltage between SJB fuse 28 (5A), circuit CBP28 (GY/VT), output side and ground. Is any voltage present? Yes: GO to E12 . No: GO to E14 .
  12. E12 ISOLATE THE SJB Ignition OFF. Disconnect: SJB C2280B. Ignition ON. Measure the voltage between SJB C2280B-2, circuit CBP28 (GY/VT), harness side and ground. Is any voltage present? Yes: REPAIR circuit CBP28 (GY/VT). CLEAR the DTCs. REPEAT the self-test. No: GO to E13 .
  13. E13 CHECK FOR CORRECT SJB OPERATION Ignition OFF. Disconnect: All SJB Connectors. Check the SJB connectors for: corrosion. pushed-out pins. spread terminals. Connect: All SJB Connectors (making sure that they are seated correctly). Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . CLEAR the DTCs. REPEAT the self-test. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
  14. E14 CHECK FOR CORRECT ACM OPERATION Disconnect: All ACM connectors. Check all ACM connectors for: corrosion. pushed-out pins. spread terminals. Connect: All ACM Connectors (making sure that all connectors are seated correctly). Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new ACM. REFER to «INFORMATION AND ENTERTAINMENT SYSTEMS»(ref-344106) . CLEAR the DTCs. REPEAT the self-test. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
  15. E15 CHECK FOR CORRECT PCM OPERATION Disconnect: All PCM Connectors. Check all PCM connectors for: corrosion. pushed-out pins. spread terminals. Connect: All PCM Connectors (making sure that all connectors are seated correctly). Operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new PCM. CLEAR the DTCs. REPEAT the self-test. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

Pinpoint Test F: DTCs B2844 and U2472

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Power Distribution/SJB for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 11

Scheme 11: PINPOINT TEST F: DTCs B2844 AND U2472
Scheme 11: PINPOINT TEST F: DTCs B2844 AND U2472
  1. F1 CHECK THE SJB DTCs Review the DTCs retrieved during the Inspection and Verification. Is DTC B2A20 present? Yes: GO to «PINPOINT TEST E»(ref-344080-S06569948152009101600000) . No: GO to F2 .
  2. F2 CHECK THE IGNITION SWITCH PIDs Connect the scan tool. Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the following ignition switch PIDs while cycling the ignition switch through each position: IGN___O___ECU IGN___A___ECU IGN___R___ECU IGN___S___ECU Does each PID display YES when the ignition switch is moved into the corresponding position and NO when the switch is moved to another position? Yes: The condition is not present at this time. INSPECT SJB connectors C2280B, C2280D and C2280E, for corrosion, spread terminals and/or pushed-out pins. REPAIR as necessary. CLEAR the DTCs. REPEAT the self-test. No: If IGN___A___ECU is displayed YES at all times, GO to F3 . If IGN___R___ECU is displayed YES at all times, GO to F6 . If IGN___S___ECU displayed YES at all times, GO to «PINPOINT TEST E»(ref-344080-S06569948152009101600000) . If IGN___O___ECU displayed YES at all times, GO to «PINPOINT TEST A»(ref-344080-S25064506682009101600000) . If IGN___A___ECU displayed NO at all times, GO to «PINPOINT TEST B»(ref-344080-S32806403352009101600000) . If IGN___R___ECU displayed NO at all times, GO to «PINPOINT TEST C»(ref-344080-S00198225962009101600000) . If IGN___S___ECU displayed NO at all times, GO to «PINPOINT TEST D»(ref-344080-S09220953402009101600000) .
  3. F3 CHECK SJB FUSE 43 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 43 (10A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___A___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F4 . No: REPAIR circuit CBP43 (GY). CLEAR the DTCs. REPEAT the self-test.
  4. F4 CHECK SJB FUSE 45 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 45 (5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___A___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F5 . No: REPAIR circuit CBP45 (YE). CLEAR the DTCs. REPEAT the self-test.
  5. F5 CHECK THE IGNITION SWITCH Ignition OFF. Disconnect: Ignition Switch 50. Carry out the Ignition Switch component test. R Diagrams Cell 149 for component testing. Did the ignition switch pass the component test? Yes: REPAIR circuit CDC33 (VT/GN). CLEAR the DTCs. REPEAT the self-test. No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. CLEAR the DTCs. REPEAT the self-test.
  6. F6 CHECK BJB FUSE 35 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: BJB Fuse 35 (10A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F7 . No: REPAIR circuit CBB35 (YE/GY). CLEAR the DTCs. REPEAT the self-test.
  7. F7 CHECK SJB FUSE 29 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 29 (5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F8 . No: REPAIR circuit CBP29 (WH/VT). CLEAR the DTCs. REPEAT the self-test.
  8. F8 CHECK SJB FUSE 31 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 31 (10A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F9 . No: REPAIR circuit CBP31 (WH/BU). CLEAR the DTCs. REPEAT the self-test.
  9. F9 CHECK SJB FUSE 35 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 35 (10A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: Hybrid: GO to F10 . Non-hybrid (late build): GO to F13 . Non-hybrid (early build): GO to F15 . No: REPAIR circuit CBP35 (YE/GY). CLEAR the DTCs. REPEAT the self-test.
  10. F10 CHECK SJB FUSE 36 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 36 (5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F11 . No: REPAIR circuit CBP36 (BU/BN). CLEAR the DTCs. REPEAT the self-test.
  11. F11 CHECK SJB FUSE 37 (10A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 37 (10A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F12 . No: REPAIR circuit CBP37 (WH). CLEAR the DTCs. REPEAT the self-test.
  12. F12 CHECK SJB FUSE 46 (7.5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 46 (7.5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F13 . No: REPAIR circuit CBP46 (WH/BU). CLEAR the DTCs. REPEAT the self-test.
  13. F13 CHECK BJB FUSE 25 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: BJB Fuse 25 (5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: Hybrid: GO to F14 . Non-hybrid (late build): GO to F16 . No: Hybrid: REPAIR circuit CBB25 (WH/OG). CLEAR the DTCs. REPEAT the self-test. Non-hybrid (late build): REPAIR circuit CBP34 (VT/BN). CLEAR the DTCs. REPEAT the self-test.
  14. F14 CHECK THE PCM FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: PCM C1175B. Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F16 . No: GO to F19 .
  15. F15 CHECK SJB FUSE 34 (5A) OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB Fuse 34 (5A). Ignition ON. Enter the following diagnostic mode on the scan tool: DataLogger - SJB. Monitor the IGN___R___ECU PID while cycling the ignition switch through each position. Does the PID display YES when the ignition switch is moved through all switch positions? Yes: GO to F16 . No: REPAIR circuit CBP34 (VT/BN). CLEAR the DTCs. REPEAT the self-test.
  16. F16 CHECK THE IGNITION SWITCH RUN OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Ignition OFF. Disconnect: SJB C2280B. Disconnect: SJB C2280D. Disconnect: SJB C2280E. Ignition ON. Measure the voltage between SJB C2280E-1, circuit CDC34 (WH/OG), harness side and ground while moving the ignition switch through all switch positions. Is voltage present when the ignition switch is moved through all switch positions? Yes: GO to F17 . No: GO to F18 .
  17. F17 CHECK THE IGNITION SWITCH Ignition OFF. Disconnect: Ignition Switch C250. Carry out the Ignition Switch component test. Refer to «SYSTEM WIRING DIAGRAMS - ESCAPE»(ref-311193) or «SYSTEM WIRING DIAGRAMS - MARINER»(ref-311218) for component testing. Did the ignition switch pass the component test? Yes: REPAIR circuit CDC34 (WH/OG). CLEAR the DTCs. REPEAT the self-test. No: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . CLEAR the DTCs. REPEAT the self-test.
  18. F18 CHECK FOR CORRECT SJB OPERATION Ignition OFF. Disconnect: All SJB Connectors. Check the SJB connectors for: corrosion. pushed-out pins. spread terminals. Connect: All SJB Connectors (making sure that they are seated correctly). Make sure the connectors are seated correctly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . CLEAR the DTC. REPEAT the self-test. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.
  19. F19 CHECK FOR CORRECT PCM OPERATION Ignition OFF. Disconnect: All PCM Connectors. Check the PCM connectors for: corrosion. pushed-out pins. spread terminals. Connect: All PCM Connectors (making sure that they are seated correctly). Make sure the connectors are seated correctly, then operate the system and verify the concern is still present. Is the concern still present? Yes: INSTALL a new SJB. REFER to «MULTIFUNCTION ELECTRONIC MODULES»(ref-344077) . CLEAR the DTC. REPEAT the self-test. No: The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

Pinpoint Test G: The Ignition Key Cannot Be Returned to the OFF Position

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Shift Interlock for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 12

Scheme 12: PINPOINT TEST G: THE IGNITION KEY CANNOT BE RETURNED TO THE OFF POSITION
Scheme 12: PINPOINT TEST G: THE IGNITION KEY CANNOT BE RETURNED TO THE OFF POSITION
  1. G1 CHECK FOR AN ENERGIZED KEY REMOVAL INHIBIT SOLENOID Remove SJB fuse 27 (20A). Attempt to turn the ignition lock cylinder to the RUN position and then back to the OFF position and remove the key. Does the ignition lock cylinder turn to the OFF position and can the key be removed? Yes: GO to G4 . No: GO to G2 .
  2. G2 CHECK THE IGNITION SWITCH FOR MECHANICAL DAMAGE Remove the ignition switch. Refer to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . Attempt to turn the ignition lock cylinder to the OFF position and remove the ignition key. Does the ignition lock cylinder turn to the OFF position and can the key be removed? Yes: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: GO to G3 .
  3. G3 CHECK THE IGNITION LOCK CYLINDER FOR MECHANICAL DAMAGE Remove the ignition lock cylinder. Refer to «HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS»(ref-344107) . Rotate the ignition lock cylinder through all positions using the key. Does the ignition lock cylinder freely rotate through all positions and can the key be removed from the lock cylinder? Yes: INSTALL a new steering column lock module. REFER to «STEERING COLUMN LOCK MODULE»(ref-344080-S29424291902009101600000) . TEST the system for normal operation. No: INSTALL a new ignition lock cylinder. REFER to «HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS»(ref-344107) . TEST the system for normal operation.
  4. G4 CHECK THE KEY REMOVAL INHIBIT SOLENOID CIRCUIT FOR A SHORT TO GROUND Ignition OFF. Select PARK. Disconnect: Ignition Switch 50. Measure the resistance between ignition switch C250-3, circuit CDC41 (WH/BN), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: GO to G5 .
  5. G5 ISOLATE THE SHORT TO GROUND IN THE KEY REMOVAL INHIBIT SOLENOID CIRCUIT Disconnect: Floor Shifter C2096. Measure the resistance between ignition switch C250-3, circuit CDC41 (WH/BN), harness side and ground. Is the resistance greater than 10,000 ohms? Yes: INSTALL a new selector lever. REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - 6F35»(ref-344100) or «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - HYBRID»(ref-344101) . TEST the system for normal operation. No: REPAIR circuit CDC41 (WH/BN). TEST the system for normal operation.

Pinpoint Test H: The Ignition Key Can Be Turned to the OFF Position When the Selector Lever is Not in PARK

Refer to SYSTEM WIRING DIAGRAMS - ESCAPE or SYSTEM WIRING DIAGRAMS - MARINER , Shift Interlock for schematic and connector information.

Note. Use the Flex Probe Kit for all test connections to prevent damage to the wiring terminals. Do not use standard multi-meter probes.

Scheme 13

Scheme 13: PINPOINT TEST H: THE IGNITION KEY CAN BE TURNED TO THE OFF POSITION WHEN THE SELECTOR LEVER IS NOT I
Scheme 13: PINPOINT TEST H: THE IGNITION KEY CAN BE TURNED TO THE OFF POSITION WHEN THE SELECTOR LEVER IS NOT I

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15
  1. H1 CHECK THE KEY REMOVAL INHIBIT SOLENOID CIRCUIT FOR GROUND Select NEUTRAL. Disconnect: Ignition Switch C250. Measure the resistance between ignition switch C250-3, circuit CDC41 (WH/BN), harness side and ground. Is the resistance less than 5 ohms? Yes: INSTALL a new ignition switch. REFER to «IGNITION SWITCH»(ref-344080-S09166045452009101600000) . TEST the system for normal operation. No: GO to H2 .
  2. H2 CHECK THE KEY REMOVAL INHIBIT SOLENOID CIRCUIT FOR AN OPEN Disconnect: Floor Shifter C2096. Measure the resistance between ignition switch C250-3, circuit CDC41 (WH/BN), harness side and floor shifter C2096-2, circuit CDC41 (WH/BN), harness side. Is the resistance less than 5 ohms? Yes: GO to H3 . No: REPAIR circuit CDC41 (WH/BN). CLEAR the DTCs. REPEAT the self-test.
  3. H3 CHECK THE FLOOR SHIFTER GROUND CIRCUIT FOR AN OPEN Measure the resistance between floor shifter C2096-4, circuit GD112 (BK/GN) harness side and ground. Is the resistance less than 5 ohms? Yes: INSTALL a new selector lever. REFER to «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - 6F35»(ref-344100) or «AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - HYBRID»(ref-344101) . TEST the system for normal operation. No: REPAIR circuit GD112 (BK/GN). CLEAR the DTCs. REPEAT the self-test.

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