Suzuki 2006 SX4, Service Manual

Page: 629 / 1478

Automatic Transmission/Transaxle: 5A-41
DTC Troubleshooting
DTC P0712: Transmission Fluid Temperature Sensor “A” Circuit Low
S6RW0C5104021
Wiring Diagram
Refer to “DTC P0711: Transmission Fluid Temperature Sensor “A” Circuit Range / Performance”.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC.
2) Keep engine running at idle speed for 5 minutes or more.
3) Check DTC.
DTC Troubleshooting
Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 DTC check
Is DTC P0712 or DTC P0713 detected?
Go to applicable DTC
diag. flow. Go to Step 3.
3 Check transmission fluid temperature sensor
1) Turn ignition switch to OFF position.
2) Disconnect connectors from TCM and transaxle (valve
body harness connector).
3) Check transmission fluid temperature sensor for
resistance referring to “Transmission Fluid Temperature
Sensor Inspection”.
Is it in good condition?
Go to Step 4. Replace transmission
fluid temperature
sensor.
4 Check transmission fluid temperature sensor circuit
1) Check the following circuit for high resistance.
• Between “C06-11” terminal of TCM connector and “LT
GRN” terminal of valve body harness connector.
• Between “C06-12” terminal of TCM connector and
“ORN” terminal of valve body harness connector.
Is each resistance 1
Ω
or less?
Substitute a known-
good TCM and recheck. Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
DTC detecting condition Trouble area
Transmission fluid temperature sensor signal voltage
is less than specified value for more than 5 minutes
while engine is running.
(1 driving cycle detection logic but MIL does not light
up) • Transmission fluid temperature sensor or its circuit
malfunction.
• TCM
Step Action Yes No
1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check transmission fluid temperature sensor circuit for
ground short
1) Turn ignition switch to OFF position.
2) Disconnect TCM connectors from TCM.
3) Check for proper connection to transmission fluid
temperature sensor at terminals “C06-11” and “C06-12”.
4) If OK, check continuity between terminals “C06-11” of
disconnected harness side TCM connector and ground.
Is continuity indicated?
“LT GRN” circuit shorted
to ground. Go to Step 3.