BCM Snapshot
NOTE:
If directed here from TEST TYPE SELECTION under MANUAL OPERATION OF SELF-DIAGNOSTICS in this article, go to step 2).
- Snapshot allows the recall of system operating specifications present at the exact time a BCM malfunction code was set. Up to 3 snapshots may be recalled. In addition, one snapshot may be triggered on demand by depressing FAN UP button when DO B SNAP is displayed. See Fig 4
.
To enter snapshot, complete the following:
- Enter self-diagnostics. See ENTERING SELF-DIAGNOSTICS under SELF-DIAGNOSTICS in this article.
- Display trouble codes stored in memory. See DISPLAYING TROUBLE CODES under SELF-DIAGNOSTICS in this article.
- Select BCM system for testing. See SYSTEM SELECTION under MANUAL OPERATION OF SELF-DIAGNOSTICS in this article.
- Select SNAPSHOT test type. See TEST TYPE SELECTION under MANUAL OPERATION OF SELF-DIAGNOSTICS in this article.
NOTE: To cancel snapshot test type selection and activate a repeat of the specific test type selection process, depress the OFF button on ECCP. - Immediately following the selection of SNAPSHOT?, the system will display BXXX. B stands for BCM. XXX is used here to represent the 3 digit trouble code stored in BCM snapshot memory.
- With BXXX displayed, depressing the LO button on the ECC panel will permit scrolling through the list of BCM diagnostic codes for which the BCM has stored a snapshot. See BCM TROUBLE CODES under SELF-DIAGNOSTICS in this article for list of BCM trouble codes which may be present in snapshot.NOTE: A trouble code displayed during the trouble code display cycle may NOT be present as a snapshot trouble code. If this is the case, exit SNAPSHOT by depressing the OFF button on the ECCP. This will return the display to the next available system selection.
- After display of the last BCM trouble code for which a snapshot does exist, pressing the FAN DOWN button on the ECCP will result in the DO B SNAP display.
- Responding to this display by depressing the FAN DOWN button on the ECCP will return the display to the first BXXX SNAP? display. Responding to the DO B SNAP display by depressing the HI button with SNAP DATA? or SNAP INPUTS? displayed, will select that test type for display.
- At this point the display is controlled as it would be for non-snapshot data and inputs display, however, all values and status information represents memorized vehicle conditions. See EXPLANATION OF SPECIFIC TEST SELECTION and MAKING SPECIFIC TEST SELECTION under MANUAL OPERATION OF SELF-DIAGNOSTICS in this article.
- Depressing the HI button again with DO B SNAP? displayed will change DIC to display the SNAP DONE message to indicate new information has been stored in memory.