Suzuki Liana RH418, Supplementary Service Manual

Page: 276 / 371

5A-50 Automatic Transmission/Transaxle:
DTC Troubleshooting
Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check shift solenoid valve circuit for IG short
1) Turn ignition switch OFF and disconnect TCM
connectors.
2) Check for proper connection to TCM at terminal “G08-4”
or “G08-3” of TCM connector.
3) If OK, turn ignition switch ON and measure voltage
between terminal “G08-4” or “G08-3” of disconnected
harness side TCM connector and ground.
Is it 0 – 2 V?
Go to Step 3. “GRY” or “GRN/ORN”
circuit shorted to power
circuit.
3 Check shift solenoid valve resistance
1) Turn ignition switch OFF.
2) Disconnect valve body harness connector (1) on
transaxle (4).
3) Check for proper connection to solenoid at “GRY” or
“GRN/ORN” circuit.
4) Check resistance of solenoid.
Resistance of shift solenoid valve
Between shift solenoid valve-A (No. 1) terminal (2)
and transaxle: 12 – 16
Ω
at 20
°
C (68
°
F)
Between shift solenoid valve-B (No. 2) terminal (3)
and transaxle: 12 – 16
Ω
at 20
°
C (68
°
F)
Is check result satisfactory?
Go to Step 4. Replace shift solenoid
valve or lead wire.
4 Check shift solenoid circuit for open
1) Connect valve body harness connector.
2) Measure resistance between terminal “G08-4” or “G08-
3” of disconnected harness side TCM connector and
ground.
Is it 11 – 15
Ω
(at 20
°
C (68
°
F))?
Go to Step 5. “GRY” or “GRN/ORN”
circuit open.
5 Check shift solenoid circuit for ground short
1) Disconnect TCM connectors.
2) Check for proper connection to TCM at terminal “G08-4”
or “G08-3” of TCM connector.
3) If connection is OK, check continuity between terminal
“G08-4” or “G08-3” of disconnected harness side TCM
connector and ground.
Is continuity indicated?
“GRY” or “GRN/ORN”
circuit shorted to
ground. Intermittent trouble or
faulty TCM. Check for
intermittent referring to
“Intermittent and Poor
Connection Inspection
in Section 00 in related
manual”. If OK,
substitute a known-
good TCM and recheck.
1
4
2
3
I3RH01510280-01