Suzuki 2006 SX4, Service Manual

Page: 643 / 1478

Automatic Transmission/Transaxle: 5A-55
DTC P0602 / P1702: Control Module Programming Error / Internal Control Module Check Sum Error
S6RW0C5104033
System Description
Internal control module is installed in ECM.
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Clear DTC.
2) Start engine and run it at idle if possible.
3) Check DTC.
3 Check shift solenoid valve resistance
1) Turn ignition switch to OFF position.
2) Disconnect valve body harness connector (1) on
transaxle.
3) Check for proper connection to “BRN” and “BLK/YEL”
terminals of valve body harness connector.
4) Check resistance of shift solenoid valve.
Resistance of shift solenoid valve
Between shift solenoid valve–A (No. 1) terminal (2)
and vehicle body ground (4): 12 – 16
Ω
at 20
°
C (68
°
F)
Between shift solenoid valve–B (No. 2) terminal (3)
and vehicle body ground (4): 11 – 15
Ω
at 20
°
C (68
°
F)
Is check result satisfactory?
Go to Step 4. Replace shift solenoid
valve or lead wire.
4 Check shift solenoid circuit for open
1) Connect valve body harness connector.
2) Measure resistance between “C06-15” or “C06-16”
terminals of disconnected harness side TCM connector
and ground.
Is it 12 – 16
Ω
(at 20
°
C (68
°
F))?
Intermittent trouble or
faulty TCM. Check for
intermittent referring to
“Intermittent and Poor
Connection Inspection
in Section 00”. If OK,
substitute a known-
good TCM and recheck. “BRN” or “BLK/YEL”
circuit open or high
resistance.
Step Action Yes No
1
4
2
3
I4RH01510247-01
DTC detecting condition Trouble area
DTC P0602:
Data programming error.
(1 driving cycle detection logic)
DTC P1702:
Data write error or check sum error.
(1 driving cycle detection logic)
TCM