System Testing: Notes

1997 Ford Explorer 4D Utility, 4.0 X, RWD, AutomaticSECTION Notes
TEST INDEX

Symptom (1) Go To Test
DTC B1562: Door Lock Cylinder Circuit Shorted To Ground A 
DTC B1522: Hood Switch Circuit Shorted To Ground B 
DTC B1845: Ignition Lock Anti-Theft Switch Circuit Failure C 
DTCs B1322, B1330, B1334, B1338 & B1574: Door Ajar Circuit Short To Ground E  (Step 8)
No Module Communication With RAP Module D 
Alarm System Does Not Arm Or Disarm Properly E 
Alarm System Does Not Disarm After Activation F 
Alarm Indicator Does Not Turn On To Indicate Arming G 
Horn, Headlights/Exterior Lights Always On Continuously H 
System Activates Falsely J 
(1) For DTCs not listed here or communication problems, see MODULE COMMUNICATIONS NETWORK article.
NOTE: A New Generation Star (NGS) tester is required for system testing.
RENDER: 1.0x

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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.