Explorer 2WD V6-245 4.0L SOHC VIN E EFI (1997)
Audible Warning Device: Diagnostic Trouble Code Tests and Associated Procedures
The CTMs Diagnostic Trouble Codes (DTCs) are 2 digits in length and are output to the operator by the sounding of the chime.
CTM Diagnostic Trouble Codes Output 21 Chart
The first digit is output, followed by a one second pause, followed by the next digit. Each digit is made up of one to nine one-second individual chime
tones. The CTM Diagnostic Trouble Codes Output 21 Chart represents the output of the DTC 21.
The entire set of stored Diagnostic Trouble Codes (DTCs) will be repeated indefinitely until either the Input Test mode is entered or the ground is
removed from the diagnostic input. Refer to the CTM Diagnostic Trouble Code (DTC) Reference Chart for all possible interior lighting (CTM
controlled) DTCs. See: Diagnostic Trouble Code Descriptions/Without Power Windows CTM
The Input Test mode individually tests the CTM inputs. It is entered from the Diagnostic Trouble Code (DTC) Output mode when the operator puts the
key in the ignition assembly. Inputs may be tested in any order. As an input is toggled ON or OFF, the door ajar indicator (if the ignition switch is in the
RUN position) and tone outputs will be activated for one second for confirmation. At any time, if the key is removed from the ignition switch, the DTC
Output mode will be re-entered.
CTM Input Test Chart
Note that all CTM functions remain disabled while in diagnostic test mode. The CTM Input Test Chart shows all the possible inputs that can be tested
for the CTM Controlled Interior Lighting System.
NOTE: Several of the inputs will not operate unless the ignition is in the RUN position.
