Suzuki Grand Vitara XL-7 Service Manual page 446

TROUBLESHOOTING
Step
1 Was "A/T DIAGNOSTIC FLOW TABLE" in this
section performed?
2 Check transmission fluid temperature sensor
circuit.
1) Turn ignition switch OFF and disconnect TCM
connectors.
2) Check for proper connection to output
transmission fluid temperature sensor at
terminal E203-5 and E203-14.
3) If OK, check resistance between terminal
E203-5 and E203-14 of disconnected harness
side TCM connector.
Is it 5800 – 7090 Ω (at 10_C (50_F))?
Resistance of transmission fluid temperature
sensor
Reference:231 – 263 Ω (at 110_C (230_F))
105 – 117 Ω (at 145_C (293_F))
3 Check transmission fluid temperature sensor
resistance.
1) With ignition switch OFF, disconnect shift
solenoid connector.
2) Check resistance between terminal "1" and "2"
of shift solenoid connector. (See figure.)
Is it 5800 – 7090 Ω (at 10_C (50_F))?
Resistance of transmission fluid temperature
sensor
Reference:231 – 263 Ω (at 110_C (230_F))
105 – 117 Ω (at 145_C (293_F))
Fig. for Step 3
Action
3. Solenoid connector
AUTOMATIC TRANSMISSION (4 A / T) 7B1-41
Yes
Go to Step 2.
Intermittent trouble or
faulty TCM.
Check for intermittent
referring to
"INTERMITTENT AND
POOR CONNECTION"
in Section 0A.
If OK, substitute a
known-good TCM and
recheck.
"RED/BLU" or
"RED/GRN" circuit
open, shorted each
other, intermittent
trouble or faulty TCM.
If wire and connection
are OK, substitute a
known-good TCM and
recheck.
No
Go to "A/T
DIAGNOSTIC FLOW
TABLE" in this section.
Go to Step 3.
Faulty transmission
fluid temperature
sensor.