Suzuki SY413 Service Manual page 1981

7B-42 AUTOMATIC TRANSMISSION (3 A/T)
TABLE B-1 GEAR SHIFT FAILURE IN "D" OR "2" RANGE
STEP
1 Was "TABLE A-2 GEAR CHANGE FAILURE" performed?
2 Is gear no shift at all?
3 Perform vehicle speed sensor check refer to "OUTPUT SPEED
SENSOR CHECK" in this section.
Is check result satisfactory?
4 Perform throttle position sensor check referring to DTC P0121
Flow Table in Section 6-1.
Is check result satisfactory?
5 Perform "SHIFT SOLENOID VALVE CIRCUIT CHECK"
described later in this section.
Is check result satisfactory?
TABLE B-2 GEAR IS SHIFTED TO 2ND GEAR IN "L" RANGE
VEHICLE DOES NOT MOVE BACKWARD IN "R" RANGE
NOTE:
Gear shift to 2nd may occur when selector lever is shifted from D or 2 to L, but this is normal.
STEP
1 Was "TABLE A-2 GEAR CHANGE FAILURE" performed?
2 Perform "SHIFT SOLENOID VALVE CIRCUIT CHECK"
described later in this section.
Is check result satisfactory?
ACTION
ACTION
YES
Go to Step 2. Go to "TABLE
A-2".
Go to Step 3. Go to Step 4.
Go to Step 5. Repair or
replace.
Go to Step 5. Repair or
replace.
Substitute a Replace shift
known-good solenoid-A
PCM and (direct clutch
recheck. solenoid)
valve or shift
solenoid-B
(2nd brake
solenoid) valve.
YES
Go to Step 2. Go to "TABLE
A-2".
Substitute a Replace shift
known-good solenoid-A
PCM and (direct clutch
recheck. solenoid) valve
or shift
solenoid-B (2nd
brake solenoid)
valve.
NO
NO