On-Board Diagnostic System; 2 Driving Cycle Detection Logic; Freeze Frame Data - Suzuki Baleno Manual

or
1. MIL 6. Monitor connector No.1
2. "O/D OFF" lamp 7. Diagnosis switch terminal
3. DLC 8. Ground terminal
4. SUZUKI scan tool 9. Relay/Fuse box
5. Monitor connector No.2

ON-BOARD DIAGNOSTIC SYSTEM

[For vehicle with WU-TWC]
For automatic transmission control system, TCM has following
functions.
D When ignition switch is turned ON with O/D off switch turned
OFF and no malfunction in A/T control system is detected, "O/D
OFF" lamp lights for about 2 sec. after ignition switch is turned
ON and then goes OFF for bulb check. If O/D off switch is ON
at this time, however, "O/D OFF" lamp remains ON to let driver
known that gear is not shifted to overdrive gear (4th gear).
D When TCM detects a malfunction in A/T control system, it
flashes "O/D OFF" lamp except DTC P1895 and P0710, stores
malfunction DTC and at the same time transmits DTC of that
malfunction to ECM. (Based on this signal, ECM turns ON mal-
function indicator lamp (MIL) and stores DTC/freeze frame data
then in its memory.)
D If no malfunction is detected after detecting above malfunction,
TCM immediately turns off flashing " O/D OFF" lamp and halts
to transmit DTC of that malfunction to ECM, however, DTC
stored in TCM memory will remain. If ECM receives no DTC of
malfunction for 3 driving cycles continuously, it turns OFF MIL
although DTC stored in ECM memory will also remain.
D It is possible to communicate with ECM and/or TCM through
data link connector (DLC) by using SUZUKI scan tool (Tech-1).
(Diagnostic information can be checked and erased by using a
scan tool.)
D It is also possible to check DTC stored in TCM memory by flash-
ing of " O/D OFF" lamp with diagnosis switch terminal of monitor
connector No.2, which is located in relay/fuse box, grounded. If
no malfunction DTC is stored in TCM memory, DTC No.12 is out-
putted repeatedly. If one or more DTCs are stored in TCM
memory, they are outputted starting from smallest code number
in increasing order. After all DTCs are outputted, all DTCs are
outputted repeatedly.

2 Driving Cycle Detection Logic

When a malfunction is detected during initial driving cycle, it is
stored in TCM memory and at the same time TCM transmits a data
to inform ECM of malfunction occurrence. At this time, ECM stores
a corresponding pending DTC in its memory. (Neither lighting of
MIL nor flashing of "O/D OFF" lamp takes place then.) If the same
malfunction is also detected in next driving cycle, TCM flashes
"O/D OFF" lamp and ECM lights MIL when it receives a data in-
forming occurrence of a malfunction from TCM.

Freeze Frame Data

Refer to Section 6-1 or 6-2 for details.
AUTOMATIC TRANSMISSION 7B1-19