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Dtc Check - Suzuki SX4 Service Manual

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5A-22 Automatic Transmission/Transaxle:
DTC No.
Detecting item
P1723 Range select switch malfunction
Torque converter clutch shudder
*P1878
Torque Converter Clutch (TCC)
P2762
Pressure Control Solenoid Control
Circuit Range / Performance
Torque converter clutch pressure
P2763
control solenoid control circuit high
Torque converter clutch pressure
P2764
control solenoid control circuit low
Control Module Communication
U0073
Bus Off
Lost Communication with ECM /
U0100
PCM "A"

DTC Check

NOTE
• There are two types of OBD system
depending on the vehicle specification.
For identification, refer to "Precaution on
On-Board Diagnostic (OBD) System in
Section 1A".
• For Euro-OBD model, the MIL is turned on
when the ECM and/or TCM detect
malfunction(s). Each control module
stores diagnostic information as the
diagnostic trouble code (DTC) in its
memory and outputs the DTC to the scan
tool. Therefore, check both of the control
modules for any DTC with the SUZUKI
scan tool because the DTC stored in ECM
and TCM is not read and displayed at a
time. However, each of the control
modules needs not to be checked with the
CAN communication OBD generic scan
tool because the DTC stored in ECM and
TCM is read and displayed at a time. In
case using CAN communication OBD
generic scan tool, refer to "DTC Table in
Section 1A".
Detecting condition
(DTC will set when detecting)
"3" position switch ON signal is inputted
although transmission range switch signal is
inputted P, R, N or L. range.
Variation in the output revolution speed of the
specified amplitude and specified cycle is
detected under slip lock-up condition.
Difference between actual current of TCC
solenoid valve circuit and current of TCC
solenoid valve circuit calculated by TCM is more
than specification.
Too much electric flow is detected on TCC
solenoid valve circuit.
No electric flow is detected on TCC solenoid
valve circuit.
Transmission error that is inconsistent between
transmission data and transmission monitor
(CAN bus monitor) data is detected more than
specified time continuously.
Receiving error from ECM detected to TCM for
specified time continuously.
1) Turn ignition switch to OFF position.
S7RW0A5104006
2) Connect scan tool to data link connector (DLC) (1).
Special tool
(A): SUZUKI scan tool (SUZUKI-SDT)
3) Turn ignition switch ON.
4) Read DTC, pending DTC and freeze frame data
according to instructions displayed on scan tool and
print it down. Refer to scan tool operator's manual
for further details.
If communication between scan tool and TCM is not
possible, check if scan tool is communicable by
connecting it to TCM in another vehicle. If
communication is possible in this case, scan tool is
in good condition. Then check data link connector
and serial data line (circuit) in the vehicle with which
communication was not possible.
5) After completing the check, turn ignition switch off
and disconnect scan tool from data link connector.
1 driving
20 driving
cycles*
1 driving
1 driving
1 driving
1 driving
1 driving
1
(A)
A
B
1 driving
cycle*
cycle*
20 driving
cycles*
1 driving
cycle
cycle
1 driving
cycle
cycle
1 driving
cycle
cycle
1 driving
cycle
cycle
1 driving
cycle
cycle
I5RW0C510072-01

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