Suzuki Wagon R Manual page 735

7B-24 AUTOMATIC TRANSMISSION (4 A / T)
3. Data link connector (DLC)
ELECTRONIC CONTROL SYSTEM
DIAGNOSIS
TCM has on-board diagnostic system (a system self-diagnosis
function).
Investigate where the trouble is by referring to "DIAGNOSTIC
FLOW TABLE" and "DIAGNOSTIC TROUBLE CODE TABLE" on
later pages.
PRECAUTIONS IN DIAGNOSING TROUBLES
[PRECAUTIONS IN IDENTIFYING DIAGNOSTIC TROUBLE
CODE]
D For the vehicle with EGR valve, MIL (1) comes on when TCM de-
tects the malfunction of transmission system. But MIL does not
come on in case of DTC P0710 (DTC 36 and 38).
D The DTC stored in the TCM memory is output by flashing of "O/D
OFF" light (2) with the diagnosis switch terminal grounded.
D If no DTC is stored in the TCM memory, Code 12 is output repeat-
edly.
D If DTCs are stored in the TCM memory, they are output starting
from the smallest code number in the increasing order. After all
DTCs are output, all DTCs output again.
[INTERMITTENT TROUBLES] and [NOTES ON SYSTEM CIR-
CUIT INSPECTION]
Refer to SECTION 0A.