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Dtc P0788: Shift / Timing Solenoid Control Circuit High - Suzuki SX4 Service Manual

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DTC P0788: Shift / Timing Solenoid Control Circuit High

Wiring Diagram
1. TCM
2. Timing solenoid valve
DTC Detecting Condition and Trouble Area
DTC detecting condition
Voltage of timing solenoid valve TCM terminal is high
although TCM is commanding timing solenoid valve to turn
OFF.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTC in TCM memory.
3) Start engine and shift select lever to "N" range.
4) Repeat shifting select lever from "N" range to "D" range and vice versa for 3 times.
5) Check DTC.
DTC Troubleshooting
Step
1
Was "A/T System Check" performed?
2
Check timing solenoid valve circuit for IG short
1) Disconnect TCM connectors.
2) Turn ignition switch ON and measure voltage between
terminal "C06-14" of harness side TCM connector and
ground.
Is it 0 – 1 V?
3
Check timing solenoid valve circuit for open
1) Measure resistance between terminal "C06-14" of
disconnected harness side TCM connector and ground.
Is it 11 – 15
at 20
12V
C06-14
[A]
C06
14
3. A/T
[A]: Terminal arrangement of TCM connector (viewed from harness side)
Action
°
°
C (68
F)?
Automatic Transmission/Transaxle:
1
2
BLU/BLK
C07
I6RW0B510012-01
• Timing solenoid valve circuit open or shorted to
power circuit
• Timing solenoid valve malfunction
• TCM
Yes
Go to Step 2.
Go to Step 3.
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.
S7RW0A5104032
3
Trouble area
No
Go to "A/T System
Check".
"BLU/BLK" circuit
shorted to power circuit.
Go to Step 4.
5A-59

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