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Home >> Ford >> 2008 >> Escape Base, 2.3 Z, AWD, Standard >> Repair and Diagnosis >> Steering >> Power Steering >> Steering System - General Information >> Diagnostic Tests >> Steering System >> Inspection and Verification >> Notes
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Inspection and Verification: Notes

  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
    • Steering column shaft coupling/U-joints
    • Loose steering column shaft bolts
    • Steering gear
    • Tie-rod ends
    • Suspension components
    • Battery junction box (BJB) fuse 1 (80A)
    • Smart junction box (SJB) fuse 35 (10A)
    • PCM
    • Power steering control module
    • SJB
    • Wiring, terminals or connectors
  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 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 DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the power steering control module and the ABS module.
  9. If the DTCs retrieved are related to the concern, go to the Power Steering Control Module DTC Chart or the Anti-Lock Brake System (ABS) Module DTC Chart. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart - Steering System  or Go to Symptom Chart - Noise, Vibration and Harshness (NVH) .
POWER STEERING CONTROL MODULE DTC CHART

DTCs Description Source Action
B1317 Battery Voltage High Power Steering Control Module Go to Pinpoint Test A .
B1318 Battery Voltage Low Power Steering Control Module Go to Pinpoint Test A .
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 steering column. REFER to STEERING COLUMN article. REPEAT the self-test.
B2277 Electric Power Steering Motor Malfunction Power Steering Control Module Go to Pinpoint Test B .
B2278 Steering Shaft Torque Sensor Malfunction Power Steering Control Module Go to Pinpoint Test B .
B2477 Module Configuration Failure Power Steering Control Module CONFIGURE the power steering control module. REFER to Programmable Module Installation in MODULE CONFIGURATION article. CLEAR the DTCs. REPEAT the self-test. If DTC B2477 is retrieved again, INSTALL a new steering column. REFER to STEERING COLUMN article. REPEAT the self-test.
B3104 Steering Shaft Position Sensor Malfunction Power Steering Control Module Go to Pinpoint Test B .
C2000 Steering Angle Sensor Not Calibrated Power Steering Control Module CALIBRATE the steering wheel position sensor, FOLLOW the directions on the scan tool for Electronic Stability Program (ESP) sensor calibration. CLEAR the DTCs. REPEAT the self-test. If DTC C2000 is retrieved again, INSTALL a new steering column. REFER to STEERING COLUMN article. REPEAT the self-test.
U0100 Lost Communication With ECM/PCM Power Steering Control Module REPAIR all other DTCs first. If DTC U0100 is still present REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the high speed communication area network (HS-CAN) bus.
U0101 Lost Communication With TCM Power Steering Control Module REPAIR all other DTCs first. If DTC U0101 is still present REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U0155 Lost Communication With Instrument Panel Cluster Power Steering Control Module REPAIR all other DTCs first. If DTC U0155 is still present REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
U2023 Fault Received From External Node Power Steering Control Module One or more modules are reporting a DTC. RETRIEVE DTCs from all other modules. REFER to the module's respective section for diagnosis. If no DTCs are present, REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the HS-CAN bus.
ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTC CHART

DTCs Description Source Action
C1277 Steering Wheel Angle 1 and 2 Circuit Failure Anti-Lock Brake System (ABS) Module
NOTE: The steering wheel position sensor is part of the power steering control module and is not serviceable separately from the module.
Go to Pinpoint Test B .
C1278 Steering Wheel Angle 1 and 2 Signal Faulted ABS Module
NOTE: The steering wheel position sensor is part of the power steering control module and is not serviceable separately from the module.
Go to Pinpoint Test B .
All Other ABS Module DTCs - ABS Module REFER to VEHICLE DYNAMIC SYSTEMS article.
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