2008 SUZUKI SWIFT C34

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-67
DTC TroubleshootingStep Action Yes No 1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check shift solenoid valve circuit for IG short
1) Connect valve body harness connector.
2) Disconnect TCM connectors.
3) Check for proper connection to TCM at terminal “C34-
16” (for shift solenoid valve-A (No.1)) or “C34-15” (for
shift solenoid valve-B (No.2)).
4) If connection is OK, turn ignition switch ON and measure voltage between terminal “C34-16” (for shift solenoid
valve-A (No.1)) or “C34-15” (for shift solenoid valve-B
(No.2)) of disconnected harness side TCM connector
and ground.
Is it 0 – 2 V? Go to Step 3. DTC P0974: “BRN”
circuit shorted to power
circuit.
DTC P0977: “BLK/YEL”
circuit shorted to power
circuit.
3 Check shift solenoid valve resistance
1) Turn ignition switch OFF.
2) Disconnect valve body harness connector (1), (2) on
automatic transaxle.
3) Check for proper connection to solenoid at “BRN” (for shift solenoid valve-A (No.1)) or “BLK/YEL” (for shift
solenoid valve-B (No.2)) circuit.
Check resistance of solenoid valve.
Shift solenoid valve resistance
Between shift solenoid valve-A (No.1) terminal (3)
and transaxle: 11 – 15 Ω at 20 °C (68 °F)
Between shift solenoid valve-B (No.2) terminal (4)
and transaxle: 11 – 15 Ω at 20 °C (68 °F)
Is check results satisfactory? 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.
Replace applicable shift
solenoid valve or valve
body harness.
1
6
7
89
10 5
43 2
1
23
4
I3RM0B510022-01

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-69
DTC P1723: Range Select Switch MalfunctionS7RS0B5104037
Wiring Diagram
LT01-8
12V
LT GRN
5
REDWHTE03-6E03-12
1
2
REDWHT
4
[D]
[C] [B]
E46
1234567
891011121314
REDWHTC37-13C37-12REDWHTC34-17C34-7
3
32
1110 9
212019 87
18
165
1615 14131211 43
2423 2122 10 9 8 7
21
1920 1817
C3417 16
26 2515 14
654
13 12
23 2224 C35
[A]
E23-3E23-18REDWHTE03-10E03-8
REDWHTE46-1E46-2
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
E23C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 33 1
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 331
1213
238
L01
678
9 54321
15161718 14 13 12 1110
I6RS0C510007-01
1. BCM
4. ABS control module [B]: BCM connector (viewed from harness side)
2. ECM 5. “3” position switch [C]: ECM connector (viewed from harness side)
3. TCM [A]: TCM connector (viewed from harness side) [D]: ABS control module connector (viewed from harness side)

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-71
DTC P1774: CAN Communication Bus OffS7RS0B5104038
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure1) Connect scan tool to DLC with ignition switch turned OFF.
2) Clear DTC.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
REDWHTE03-6E03-12
1
4
7
REDWHT
2
[C]
[B]
G37E46
1234567
1234567
891011
891011
121314 121314
151617
18
19202122 [E]65
1615 14131211 43
2423 2122 10 9 8 7
21
1920 1817
C3417 16
26 2515 14
65 3
42
13 12
23 2224 1110 9
212019 87
18
1
C35
[F]
REDWHTC37-13C37-12REDWHTC34-17C34-7
3
1234567891011
141516
36 34 33 32 31 30 29 24 23
37
181920
[D] [A]
G49
E23-3E23-18
5
REDWHTG28-7G28-9REDWHTG49-19G49-18
6
REDWHTE03-10E03-8
G37-4G37-2
REDWHTE46-1E46-2REDWHTREDWHTG28-8G28-10
RED/BLKWHT/BLKG37-3G37-1
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
E23C37
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 33 1
1213
238
34
1819
567
1011
17
20
47 46
495051
2122
52 16
25 9
24
14
29
5557 54 53
59
60 58 2
262728
15
30
56 4832 31
34353637
4042 39 38
44
45 43 41 331
1213
238
G281234567
8
910111213141516
1718
19
20
212223242526272829303132
I6RS0C510008-01
1. ABS control module [A]: Terminal arrangement of ABS control module connector (viewed from terminal side)
2. ECM [B]: Terminal arrangement of BCM connector (viewed from harness side)
3. TCM [C]: Terminal arrangement of ECM connector (viewed from harness side)
4. BCM [D]: Terminal arrangement of combination meter connector (viewed from harness side)
5. Combination meter [E]: Terminal arrangement of TCM connector (viewed from harness side)
6. Keyless start control module [F]: Terminal arrangement of Keyless start control module connector (viewed from harness side)
7. DLC
DTC detecting condition Trouble area
Transmission error that is incons istent between transmission data and
transmission monitor (CAN bus monitor) data is detected more than 7
times continuously. •ECM
•BCM
•TCM
• ABS control module
• Combination meter
• Keyless start control module
• CAN circuit

Downloaded from www.Manualslib.com manuals search engine 5A-76 Automatic Transmission/Transaxle:
DTC P2762: Torque Converter Clutch (TCC) Pressure Control Solenoid Control Circuit Range /
Performance
S7RS0B5104050
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Clear DTC in TCM memory.
3) Start engine.
4) Keep engine running at idle speed for 30 seconds or more.
5) Stop vehicle and check DTC.
12V
C34-5
C34-3
WHT/BLU
WHT/BLK
3
1
2
53
C34C35
[A]
I4RS0A510019-01
1. TCM
3. A/T
2. TCC solenoid valve [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting conditionTrouble area
Difference between target current of TCC solenoid valve
circuit and monitor current of TCC solenoid valve circuit is
more than specification. • TCC solenoid valve or its circuit malfunction
•TCM

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-77
DTC TroubleshootingStep Action Yes No 1 Was “A/T System Check” performed? Go to Step 2. Go to “A/T System
Check”.
2 Check TCC solenoid valve resistance
1) Turn ignition switch to OFF position.
2) Disconnect valve body harness connector (1), (2) on
automatic transaxle.
3) Check for proper connection to terminal at “WHT/BLU” and “WHT/BLK” circuit.
4) Check resistance of TCC solenoid valve.
TCC solenoid valve resistance
Between terminals of transaxle side valve body
harness connector: 5.0 – 5.6 Ω at 20 °C (68 °F)
Between terminals of transaxle side valve body
harness connector and transaxle: Infinity
Is check results satisfactory? Go to Step 3. Replace TCC solenoid
valve or valve body
harness.
3 Check for pressure control solenoid valve circuit
1) Disconnect TCM connectors.
2) Check for proper connection to TCM at terminals “C34-
3” and “C34-5”. If connection is OK, check circuit for
open, short and high resistance for the following circuit.
• Between “C34-3” terminal of TCM connector and “WHT/BLK” terminal of valve body harness connector.
• Between “C34-4” terminal of TCM connector and “WHT/BLU” terminal of valve body harness connector.
Are they in good condition? 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.
If OK, substitute a
known-good TCM and
recheck.
Repair “WHT/BLU” and/
or “WHT/BLK” circuit.
1
6
7
89
10 5
43 2
1
2
I4RS0A510020-01

Downloaded from www.Manualslib.com manuals search engine 5A-78 Automatic Transmission/Transaxle:
DTC P2763: Torque Converter Clutch Pressure Control Solenoid Control Circuit HighS7RS0B5104043
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ig nition switch OFF, if available.
2) Clear DTC in TCM memory.
3) Start engine.
4) Keep engine running at idle speed in “P” range for 10 seconds or more.
5) Check DTC.
DTC Troubleshooting
1. TCM 3. A/T
2. TCC lock-up pressure control solenoid valve [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting conditionTrouble area
Voltage of TCC lock-up pressure control solenoid valve TCM
terminal is high although TCM is commanding TCC lock-up
pressure control sole noid to turn OFF. • TCC lock-up pressure contro
l solenoid valve circuit
shorted to ground
• Malfunction of TCC lock-up pressure control solenoid valve
•TCM
12V
C34-5
C34-3
WHT/BLU
WHT/BLK
3
1
2
53
C34C35
[A]
I4RS0A510019-01
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.

Downloaded from www.Manualslib.com manuals search engine Automatic Transmission/Transaxle: 5A-79
2Check TCC solenoid valve circuit for IG short
1) Connect valve body harness connector.
2) Disconnect TCM connectors.
3) Check for proper connection to TCM at terminal “C34-3”
and “C34-5”.
4) If connection is OK, turn ignition switch ON and measure voltage between terminal “C34-3” of disconnected
harness side TCM connector and ground between
terminal “C34-5” of disconnected harness side TCM
connector and ground.
Are voltage 1 V or less? Go to Step 3. “WHT/BLU” or “WHT/
BLK” circuit shorted to
power circuit.
3 Check TCC lock-up pressure control solenoid valve
resistance
1) Turn ignition switch OFF.
2) Disconnect valve body harness connector (1), (2) on
automatic transaxle.
3) Check for proper connection to solenoid at “WHT/BLU” and “WHT/BLK” circuits.
4) Check resistance of TCC lock-up pressure control
solenoid valve.
TCC lock-up pressure control solenoid valve
resistance
Between terminals of transaxle side valve body
harness connector: 5.0 – 5.6 Ω at 20 °C (68 °F)
Between terminals of transaxle side valve body
harness connector and transaxle: Infinity
Is check results satisfactory? Intermittent trouble or
faulty TCM.
Check for intermittent
trouble referring to
“Intermittent and Poor
Connection Inspection
in Section 00”.
If OK, substitute a
known-good TCM and
recheck.
Replace TCC lock-up
pressure control
solenoid valve or lead
wire.
Step Action Yes No
1
6
7
89
10 5
43 2
1
2
I4RS0A510020-01

Downloaded from www.Manualslib.com manuals search engine 5A-80 Automatic Transmission/Transaxle:
DTC P2764: Torque Converter Clutch Circuit Pressure Control Solenoid Control Circuit LowS7RS0B5104044
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
WARNING!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and a tester, on a level road.

1) Connect scan tool to DLC with ig nition switch OFF, if available.
2) Clear DTC in TCM memory.
3) Start engine.
4) Keep engine running at idle speed in “P” range for 20 seconds or more.
5) Check DTC.
DTC Troubleshooting
1. TCM 3. A/T
2. TCC pressure control solenoid valve [A]: Terminal arrangement of TCM connector (viewed from harness side)
DTC detecting condition Trouble area
Voltage of TCC lock-up pressure control solenoid valve TCM
terminal is low although TCM is commanding TCC lock-up
pressure control sole noid to turn ON. • TCC lock-up pressure contro
l solenoid valve circuit
shorted to ground
• Malfunction of TCC lock-up pressure control solenoid valve
•TCM
12V
C34-5
C34-3
WHT/BLU
WHT/BLK
3
1
2
53
C34C35
[A]
I4RS0A510019-01
Step
Action YesNo
1 Was “A/T System Check” performed? Go to Step 2.Go to “A/T System
Check”.