Toronado V6-231 3.8L (1986)
The override test type is unique in that any other test type within the selected system may be active at the same time. After selecting in override test,
touching the "OFF" button will allow selection of another test type, however, the ECC panel will continue to display the selected override. By selecting
another test type and test, and then touching the "WARM" or "COOL" buttons, it is possible to monitor the effect of the override on different vehicle
parameters.
BCM OVERRIDE DISPLAYS:
BS00
The "NONE" display will not display any value as this is a resting spot where no overrides will be controlled. This is a handy spot to go to
stop the override without having to go back to the level where the system is selected.
BS01
"PROGRAM NO" As the heating and air conditioning operating conditions change, the program number will automatically change in
response. The automatic calculation of program number can be bypassed by a manual override feature using the "WARM" and "COOL"
buttons on the ECC panel. Touching the "WARM" button will force the program number to increase at a controlled rate until the value of
"99" is reached. "99" represents the "Max Heat" mode of climate control operation. Touching the "COOL" button will force the program
number to decrease until the value of "O" is reached which represents the "MAX A/C" mode. This manual override of automatic program
number calculation will continue until the override is stopped. This allows the technician to control the program number to any number from
"O" to "99" and simultaneously observe the reaction of any of the BCM data parameters.
BS03
"PANEL DIMMING" As the dim pot is moved the incandescent dimming number will automatically change in response (if outside lights
are on). The automatic control of dimming can be bypassed by a manual override feature using the override control. "99" represents the max
brightness of incandescent displays and "O" represents the max dimming of incandescent lighting. (Outside lights do not have to be on to
override incandescent dimming). This allows the technician to control the dimming number from "O" to "99".
BS05
"C/C SERVO" The cruise control switch must be on for this test to work.. The automatic calculation of cruise control position number can
be bypassed by a manual override feature using the override. "99" represents the max cruise position (WOT) and "O" represents the
minimum cruise position (closed throttle). This manual override of automatic cruise control position number calculation will continue until
the override is stopped. This allows the technician to control the cruise control position number to any number from "0" to "99" and
simultaneously observe the reaction of the data value for cruise servo position (BD70). The two should agree with each other +/- 3% except
when the servo is commanded beyond its mechanical limits of travel. Since this test is not allowed with engine running remember that there
is usually only enough vacuum in the storage tank to stroke the servo once.
BS06
"BLOWER SPD" This override will control the HVAC blower to full speed at a display of "99" by pressing the "WARM" button. The
"COOL" button will slow the blower to a minimum speed at a display of "O".
Clearing Diagnostic Trouble Codes
Selecting reset codes will result in the message "CLEAR ECM CODES?" or "CLEAR BCM CODES?" depending which system was being tested. At
this point the following action may be taken:
1.
Pressing the "OFF" button will stop the test selection process and return the display to the next available test type for the selected system.
2.
Pressing the "LO" fan button will display the next test type available.
3.
Pressing the "HI" fan button will select "CLEAR CODES". A message "ECM CODES CLEARED" or "BCM CODES CLEARED" will
appear to indicate those codes have been cleared from memory.
4.
Pressing "BI-LEV" will exit diagnostics.
Entering Diagnostic Mode
To enter diagnostic mode, proceed as follows:
1.
Turn the ignition "ON".
2.
Touch the "OFF" and "WARM" buttons on the ECC panel simultaneously and hold until a segment check is displayed on the IPC and ECC
(usually about 3 seconds).
NOTICE:
Operating the vehicle in the "Diagnostic Mode" for extended time periods without the engine running or without a battery charger
will cause the battery to run down and possibly relate false diagnostic information, or cause a no start condition. To ensure proper
operation, attach a battery charger on "Trickle" charge if vehicle is to be operated in "Diagnostic Mode" without engine running for
periods, longer than 1/2 hour.
After "Diagnostic Mode" is entered any "trouble codes" stored in computer memory will be displayed. ECM codes will be displayed first. If no ECM
trouble codes are stored, the IPC will display a "NO ECM CODES" message for approximately two seconds. All ECM codes will be prefixed with an
"E" (i.e.), E013, E014, etc.). For the ECM code assignments, go to "ECM TROUBLE CODE CHARTS". The lowest numbered ECM code will be
displayed first followed by progressively higher numbered codes present. Codes will be displayed consecutively for two second intervals until the highest
code present has been displayed. When all ECM codes have been displayed, BCM codes will be displayed. The lowest numbered BCM code will be
displayed for approximately two seconds. BCM codes accompanied by "Current" indicates the fault still exists. Since the ECM is not capable of making
