B2101-IGNITION RUN/START INPUT LOW





For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the ignition switch on.

  • Set Condition:

    The WCM/WIN (SKREEM) Module has detected the ignition switch input voltage below a calibrated value.


Possible Causes
  
(F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN
  
WCM/WIN (SKREEM) MODULE
  



Diagnostic Test

1.CHECK FOR ACTIVE DTC

NOTE: Check to make sure the battery and charging system are operating properly. Battery and charging system problems may cause these DTC's to set.

NOTE: Diagnose any related Powertrain DTC(s) before continuing.







Does the scan tool display this DTC as active?

Yes
  • Go To 2


No
  • The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
  • Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2.(F20) IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT OPEN


NOTE: Check the related fuse(s) to the (F20) Ignition Switch Output (Run-Start) circuit. If a fuse is found to be open, repair the circuit for a shorted condition.







Does the test light illuminate brightly?

Yes
  • Go to 3


No

3.(Z905) GROUND CIRCUIT OPEN

NOTE: A dirty (partial) ground can cause abnormal conditions within a system. This step ensures the module has a good ground.





Does the test light illuminate brightly?

Yes


No