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Dtc P1702: Internal Control Module Memory Check Sum Error; Dtc P1723: Range Select Switch Malfunction - Suzuki SX4 Service Manual

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5A-70 Automatic Transmission/Transaxle:

DTC P1702: Internal Control Module Memory Check Sum Error

DTC Detecting Condition and Trouble Area
DTC detecting condition
Calculation of current data stored in TCM is not correct
comparing with pre-stored checking data in TCM.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTC in TCM memory.
3) After 10 seconds passed from turning ignition switch ON, check DTC.
DTC Troubleshooting
Step
1
Is DTC P1702 detected after performing "DTC Confirmation
Procedure"?

DTC P1723: Range Select Switch Malfunction

Wiring Diagram
1. "3" position switch
DTC Detecting Condition and Trouble Area
DTC detecting condition
"3" position switch ON signal is inputted although
transmission range switch signal is inputted P, R, N or L.
range.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool and turn ignition switch ON.
3) Shift select lever to each of "L", "2", "3", "D", "N", "R" and "P" ranges for 20 seconds each.
4) Check DTC, pending DTC and freeze-frame data.
Action
1
[A]
C06
2. TCM
[A]: TCM connector (viewed from harness side)
TCM
Yes
Faulty TCM.
Replace TCM.
2
12V
C07-9
YEL
C07
9
I6RW0B510015-01
• "3" position switch or its circuit malfunction
• TCM
S7RW0A5104038
Trouble area
No
Could be a temporary
malfunction of TCM.
S7RW0A5104039
Trouble area

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