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HOMESERVICE MANUALSFORD2007ESCAPE BASE, 2.3 Z, FWD, AUTOMATICREPAIR AND DIAGNOSISSTEERINGPOWER STEERINGSTEERING SYSTEM - GENERAL INFORMATIONDIAGNOSTIC TESTSSTEERING SYSTEM - HYBRIDINSPECTION AND VERIFICATIONNOTES
2007 Ford Escape Base, 2.3 Z, FWD, Automatic

Inspection and Verification: Notes

2007 Ford Escape Base, 2.3 Z, FWD, AutomaticSECTION Notes
WARNING: The traction battery and charging system contain high voltage components and wiring. High voltage insulated safety gloves and a face shield must be worn when carrying out any diagnostics on this vehicle. Failure to follow these instructions may result in severe personal injury or death.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Tire pressure
    • Tires
    • Binding or misaligned steering column
    • Tie-rod ends
    • Tie-rod end seals
    • Suspension components
    • Steering column shaft U-joints
    • Intermediate shaft bolts
    • Loose column intermediate shaft bolts
    • Steering gear
    • Battery junction box (BJB) fuse(s):
      • 15 (20A)
      • 25 (50A) electrical power assist steering 1
      • 32 (50A) electrical power assist steering 2
    • Smart junction box (SJB) fuse(s):
      • 4 (10A)
      • 34 (5A)
    • Circuitry
    • Ignition switch
    • Power steering control module
    • SJB
    • Torque sensor
    • Powertrain control module (PCM)
  3. If an obvious cause for on observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    4. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
    5. NOTE: The vehicle communication module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  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 article, No power to the scan tool, to diagnose no communication with the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK article to diagnose no response from the powertrain control module (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 article.
    • If the network test passes, retrieve and record continuous memory diagnostic trouble codes (DTCs).
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the power steering control module.
  9. If the DTCs retrieved are related to the concern, go to the Power Steering Control Module Diagnostic Trouble Code (DTC) Index. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
POWER STEERING CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTCs Description Source Action
B1317 Battery Voltage High Power Steering Control Module REFER to HIGH VOLTAGE TRACTION BATTERY article.
B1318 Battery Voltage Low Power Steering Control Module REFER to HIGH VOLTAGE TRACTION BATTERY article.
B1342 ECU is Faulted Power Steering Control Module CLEAR the DTCs. CYCLE the ignition switch to the OFF position for 3 seconds. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new power steering control module. REFER to POWER STEERING article.
B2277 Electric Power Steering Motor Malfunction Power Steering Control Module Go to Pinpoint Test G .
B2278 Steering Shaft Torque Sensor Malfunction Power Steering Control Module Go to Pinpoint Test G .
B2477 Module Configuration Failure Power Steering Control Module REFER to MODULE CONFIGURATION article.
C1778 Power Steering Failure Power Steering Control Module If DTC C2778 is present, REPAIR it first before proceeding. Go to Pinpoint Test F .
C2791 Power Steering Motor Wire Open Power Steering Control Module Go to Pinpoint Test G .
C2792 Electric Power Steering Motor Wire Short to Battery Power Steering Control Module Go to Pinpoint Test G .
C2793 Electric Power Steering Motor Wire Short to Ground Power Steering Control Module Go to Pinpoint Test G .
C2794 Electric Power Steering Motor Overheat Protection Power Steering Control Module Allow the vehicle to cool. CLEAR the DTCs. CYCLE the ignition switch to the OFF position for 3 seconds. REPEAT the self-test.
U1900 CAN Communication Bus Fault - Receive Error Power Steering Control Module REFER to MODULE COMMUNICATIONS NETWORK article.
U2197 Invalid Vehicle Speed Data Power Steering Control Module REPAIR all other power steering control module DTCs before continuing diagnosis of DTC U2197. Go to Pinpoint Test E .
U2499 ECU Overheat Protection Power Steering Control Module Allow the vehicle to cool. CLEAR the DTCs. CYCLE the ignition switch to the OFF position for 3 seconds. CYCLE the ignition switch. REPEAT the self-test.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.