Dtc P0712: Transmission Fluid Temperature Sensor "A" Circuit Low - Suzuki 2006 SX4 Service Manual

DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 DTC check
Is DTC P0712 or DTC P0713 detected?
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?
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

DTC P0712: Transmission Fluid Temperature Sensor "A" Circuit Low

Wiring Diagram
Refer to "DTC P0711: Transmission Fluid Temperature Sensor "A" Circuit Range / Performance".
DTC Detecting Condition and Trouble Area
DTC detecting condition
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)
DTC Confirmation Procedure
1) Clear DTC.
2) Keep engine running at idle speed for 5 minutes or more.
3) Check DTC.
DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
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?
Action
Ω
or less?
Action
Automatic Transmission/Transaxle:
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Substitute a known-
good TCM and recheck.
Trouble area
• Transmission fluid temperature sensor or its circuit
malfunction.
• TCM
Yes
Go to Step 2.
"LT GRN" circuit shorted
to ground.
5A-41
No
Go to "A/T System
Check".
Go to Step 3.
Replace transmission
fluid temperature
sensor.
Intermittent trouble.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
S6RW0C5104021
No
Go to "A/T System
Check".
Go to Step 3.