LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 1996 >> Aerostar Van Window >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Air Bag Restraint System >> Diagnostic Tests >> Code 22 - SAFING Sensor Shorted >> Test Procedure

Test Procedure

  1. Verify Condition

    Turn ignition on. Check for fault codes. If Code 22 is flashing, go to step 2). If Code 22 is not flashing, check connectors, wiring, splices and crimps for an intermittent problem. DO NOT proceed with diagnostic test unless code is flashing. Doing so will result in needless replacement of system components.
  2. Check For Short Circuit

    Deactivate air bag system. See DISABLING & ACTIVATING AIR BAG SYSTEM  . Measure voltage between terminals No. 3 (Black/White wire) and No. 13 (Black/Orange wire) of diagnostic monitor. Record this voltage as system voltage.
  3. Using terminal No. 3 (Black/White wire) as ground, measure voltage between terminals No. 3 and 11 (Gray/Orange wire) of diagnostic monitor connector. See Figure . Using this voltage reading and system voltage reading taken in step 2), determine if voltage at terminal No. 11 is within specification. See VOLTAGE SPECIFICATIONS (CODE 22)  table. If voltage is high, locate and repair short to voltage on circuit No. 614 (Gray/Orange wire). After repair is complete, go to step 4). If voltage is okay, replace diagnostic monitor.
    VOLTAGE SPECIFICATIONS (CODE 22)

    Voltage At Terminal No. 11 System Voltage
    2.2 10.5
    2.3 11.0
    2.4 11.5
    2.5 12.0
    2.6 12.5
    2.7 13.0
    2.8 13.5
    2.9 14.0
    3.0 14.5
    3.1 15.0
    3.2 15.5
  4. Check For Shorted Wiring

    Turn ignition off. Disconnect safing sensor. Safing sensor is located behind right side kick panel. Disconnect diagnostic monitor. Diagnostic monitor is located on left side of steering column, under instrument panel. Check for continuity between terminal No. 11 (Gray/Orange wire) and terminals No. 15 (White/Orange wire) and No. 23 (Purple/Orange wire) of diagnostic monitor connector. If continuity does not exist, go to step 5). If continuity exists in one or more circuits, locate and repair short between circuits No. 611, 612 or 614. Repair as necessary.
  5. Check For Safing Sensor Short

    Check for continuity between White/Orange wire and Gray/Orange wire of safing sensor connector. If continuity exists, replace safing sensor. If continuity does not exist, locate and repair short to voltage in circuit No. 614, 615 or 623.