Page 343 of 2893
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ECM/PCM Electrical Connections (cont’d)
11-20 Fuel and Emissions Systems
System Description (cont’d)
TERMINAL LOCATIONS
*1: A/T
ECM/PCM A ( ) (44P) ECM/PCM C ( ) (44P)
ECM/PCM B ( ) (44P)
ATF TEMPERATURE SENSOR
A/T CLUTCH
PRESSURE
CONTROL
SOLENOID
VALVE A
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
N
INPUT SHAFT
(MAINSHAFT)
SPEED SENSOR
S
A/T CLUTCH
PRESSURE
CONTROL
SOLENOID
VALVE B
A/T CLUTCH
PRESSURE
CONTROL
SOLENOID
VALVE C
TATF B27
SHA B10
SHB B11
SHC B20
SHD B26
LSA B44
NC C43
NM B17
LSB B35
LSC B25 O
M
L
J
To
SHIFT LOCK SOLENOID P
R
N
D S B15 ATPS B21 ATPD
B12 ATPN B14 ATPR B13 ATPP
A27 SLS
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
B9 OP3SW
TRANSMISSION
RANGE SWITCH
2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH B28 ATPFWD
B22 ATPRVS
B8 OP2SW
*1
SHE B24
B40 SDNP B16 SUPP
PADDLE SHIFTER
(UPSHIFT SWITCH)
PADDLE SHIFTER
(DOWNSHIFT SWITCH) SHIFT SOLENOID
VALVE A
SHIFT SOLENOID
VALVE B
SHIFT SOLENOID
VALVE C
SHIFT SOLENOID
VALVE D
SHIFT SOLENOID
VALVE E
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Page 349 of 2893
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ECM/PCM Inputs and Outputs at Connector A ( ) (44P)
Terminal
numberWire color Terminal name DescriptionSignal
11-26Fuel and Emissions Systems
System Description (cont’d)
NOTE: Standard battery voltage is about 12 V.
24 GRY VCC5 (SENSOR VOLTAGE) Provides sensor reference voltageWith ignition switch ON (II): about 5.0 V
25 BRN VCC4 (SENSOR VOLTAGE) Provides sensor reference voltageWith ignition switch ON (II): about 5.0 V
26 LT GRN FTP (FUEL TANK PRESSURE (FTP) SENSOR) Detects FTP sensor signal With ignition switch ON (II) and fuel fill cap
removed: about 2.5 V
27 PNK SLS (SHIFT LOCK SOLENOID) Drives shift lock solenoid With ignition switch ON (II), in P, brake pedal
pressed, and accelerator released:
battery voltage
27 GRN RVS (REVERSE LOCKOUT SOLENOID) Drives reverse lockout
solenoidWith vehicle speed below 9 mph (15 km/h):
battery voltage
With vehicle speed above 13 mph (20 km/h):
about 0 V
28 BLU NEP (ENGINE SPEED PULSE) Outputs engine speed pulse With engine running: pulses
29 BLU VSSOUT (VEHICLE SPEED SIGNAL OUTPUT) Sends vehicle speed signal Depending on vehicle speed: pulses
31 BRN SCS (SERVICE CHECK SIGNAL) Detects service check signal With service check signal shorted using HDS:
about 0 V
With service check signal opened: about 5.0 V
33 GRN ECT2 (ENGINE COOLANT TEMPERATURE (ECT)
SENSOR 2) Detects ECT sensor 2 signal With ignition switch ON (II): about 0.1 4.8 V
(depending on engine coolant temperature)
34 LT BLU SG5 (SENSOR GROUND) Sensor ground Less than 1.0 V at all times
35 BLU SG4 (SENSOR GROUND) Sensor ground Less than 1.0 V at all times
36 WHT CANH (CAN COMMUNICATION SIGNAL
HIGH) Sends communication
signal
With ignition switch ON (II): about 2.5 V (pulses)
37 RED CANL (CAN COMMUNICATION SIGNAL
LOW) Sends communication
signal
With ignition switch ON (II): about 2.5 V (pulses)
1: A/T
3: K20Z3 engine
1
3
Terminal side of female terminals
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Page 365 of 2893
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Fuel Cap Warning MessageTo make the message go off (with the HDS)
To make the message go off (without the
HDS) (’06 model)
To make the message go off (without the
HDS) (’07-09 models)
First drive cycle Procedure
Procedure
Procedure
11-42Fuel and Emissions Systems
System Description (cont’d)
A
Shows CHECK FUEL CAP
in the gauge display.
The ECM/PCM detects a loose or missing fuel fill cap as
an evaporative system leak, and alarts the driver by
showing a warning message in the gauge display.
The first time a leak is detected a CHECK FUEL CAP
message is shown in the gauge display (A). To scroll to
another message, press the select/reset button. The
CHECK FUEL CAP message appears each time you
restart the engine until the system turns the message
off. Turn the engine off, then replace or tighten the fuel
fill cap until it clicks at least once.
1. Tighten the fuel fill cap until it clicks.
2. Clear the Temporary DTC with the HDS.
3. Verify there is no leak by doing the EVAP
FUNCTION TEST in the INSPECTION MENU with
the HDS.
1. Tighten the fuel fill cap until it clicks.
2. The message should go off after s everal days of
normal driving.
1. Tighten the fuel fill cap until it clicks.
2. Start the engine, then turn the ignition switch to LOCK (0).
3. Repeat step 2 two more times.
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Page 374 of 2893
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11-51
2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
1
1
BLU/RED
BLU/WHT
BLU/WHT
RED/BLK
BLU/BLK
WHT 7
YEL/GRN
RED/WHT RED
BLU/YEL 4
9
3
8
6
10
1 P
R
N
D
TRANSMISSION
RANGE SWITCH S
G101 BLU/WHT
RED/BLK
BLK/BLU
WHT 4
PNK
BLK
WHT/RED BLU
YEL/RED 6
7
2 8
3
5
1
10
5
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
YEL/RED
B
GRN/WHT1
2
3
C
*1
B8
B9 OP2SW
OP3SW 17
16 23 22
B13
B14 BLU/BLK
WHT
B21 B12 ATPP
ATPR
ATPD
ATPN
B15 ATPS
B28 ATPFWD
B22 ATPRVS BLU/
BLK
C101
BLK/WHT
C43
NC
4C101
O
ORN
CLUTCH
INTERLOCK
SWITCHClutch pedal pressed: closed
Clutch pedal released: open
BLK ORN 1
2
G401 BLK/RED
(BLK)*4
*2
WHT
20
*1: A/T
*2: M/T
*4: ’07-09 models
(cont’d)
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11-53
1
A33
ECT2
2
A9
SG6 GRN
BLK
A/C PRESSURE
SENSOR
1
A19
VCC6
2
A16
ACPD LT GRN
3
BLK
1
2
A26
FTP
3
BLK
1
A10
VSV LT GRN
LT GRNEVAP CANISTER
VENT SHUT VALVE
2
PUR
A28
NEP BLU
To
EPS CONTROL UNIT
12
9
10
11
8
RED
BLK
PUR C204
Q
BLULT GRN
A27
SLS PNK
13
B16
SUPP
B40 SDNP BRN C201
VYEL
PNK
2
1
2
1
2 1
BLU/YEL AH
RED
*1 LT GRN
17
BLU
GRN BLU
BLK
G504 16
16
1717
7
6 GRN/ORN
BLK/WHT
LT GRN
GRN
C202
CABLE REEL
C103
2
1 2
1 ECT SENSOR 2
FTP SENSOR
SHIFTLOCK
SOLENOID
PADDLE
SHIFTER
(UPSHIFT
SWITCH)
PADDLE
SHIFTER
(DOWNSHIFT
SWITCH)
RED BLK
*1: A/T
(cont’d)
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Page 385 of 2893
ÎECM Circuit Diagram (K20Z3 engine) (cont’d)
11-62Fuel and Emissions Systems
System Description (cont’d)
EVAP CANISTER
PURGE VALVE
BLK/YEL
B3
IBLK/YEL
BLK/YEL
No. 1 IGNITION COILNo. 3 IGNITION COIL
C15
C16
C17
G101BLK BLK
BLK/WHT
BLK
ICM To
SPARK
PLUG
ICM
To
SPARK
PLUG
ICM
To
SPARK
PLUG
No. 2 IGNITION COIL
17
WHT/BLU BLU/RED No. 4 IGNITION COIL
C18
BLKICM To
SPARK
PLUG
24P JUNCTION
CONNECTOR
24P JUNCTION
CONNECTOR
BLK
J
BLK/
WHT BLK/YEL
B42
YEL/GRN BLK/WHT
BLK/WHT
BRN BLK/WHT
WHT/BLU
ALTERNATOR
1
1
3
YEL/BLU
BLK/YEL
D
WHT/BLU
C106
9
B43 WHT/RED WHT/RED
WHT/GRN
B41 WHT/GRN 4
6
1
3
5
YEL C101
7
2
34
2
8
6 7
BLK/YEL
WHT/BLU
WHT/RED
WHT/GRN
PCS
IGPLS1
IGPLS2
IGPLS3
IGPLS4 ALTL
ALTF ALTC H
WHT/BLU
BLU/RED YEL/GRN
BRN
BLU
8
C101
13
1415 16
1
2
3
1
2
3
1
2
3
1
2 YEL/BLU
REVERSE LOCKOUT
SOLENOID
GRN/BLK
1
2
BLK/YEL
A27
RVS
GRN 20
C101 2
4
15
16
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Page 391 of 2893
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ECM Circuit Diagram (K20Z3 engine) (cont’d)
11-68Fuel and Emissions Systems
System Description (cont’d)
PGM-FI MAIN
RELAY 2
(FUEL PUMP)
UNDER-DASH FUSE/RELAY BOX
STARTER
CUT RELAY
(ST CUT)
F5
YEL
F8
PNK
F10
BRN
F11
BRN
F24
F25
LT GRN
F30
LT GRN
F31
WHT
F29
G2
ORN
G4
ORN
G12
BRN
G16
WHT
G20
WHT
Q1
WHT
Q5
ORN
Q8
LT BLU
E9
GRN
E27
YEL
IG2
B IG1
D1
WHT
D2
BLU
C3
ORN
C1
YEL
3 UOPY
V
X
C36 IG1
A44 S-NET5V
A15 IMOFPR
A31
SCS
A40
BKSW
G401 BLK/GRN
C101 2
BLK
TRS
ST6
4
1
M
IGNITION SWITCH MICU
FUEL PUMP P
2
4
BLK
1
2
CLUTCH
INTERLOCK
SWITCH ZW
Clutch pedal pressed: closed
Clutch pedal released: open
IG1 HOT in ON (II)
and START (III)
ORN
G601BRN
22
UNDER-HOOD FUSE/RELAY BOX:
No. 21 DBW (THROTTLE
ACTUATOR CONTROL) (15 A) No. 18 IG COIL (15 A)
No.19FIMAIN(15A)
No.11FISUB(15A)
No.15OILLVL(7.5A)
No. 2 IG MAIN (50 A)
No. 23 BACK UP (10 A)
No.12STOP&HORN(15A)
No. 1 MAIN FUSE (100 A)
UNDER-DASH FUSE/RELAY BOX: No. 3 ALTERNATOR (10 A)
No. 2 FUEL PUMP (15 A)
No. 36 IG2 HAC (A/C) (10 A)
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Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes) Catalytic Converter Monitor and Readiness
Code
Enable Criteria
Procedure
11-69
How to Set Readiness Codes
The vehicle has certain readiness codes that are part of
the on-board diagnostics for the emissions systems. If
the vehicle’s battery has been disconnected or gone
dead, if the DTCs have been cleared, or if the ECM/PCM
has been reset, these readiness codes are reset to
incomplete. In some states, part of the emissions
testing is to make sure these codes are set to complete.
If all of them are not set to complete, the vehicle may
fail the emission test, or the test cannot be finished.
To check if the readiness codes are set to complete,
turn the ignition switch to ON (II), but do not start the
engine. The MIL will come on for 15 20 seconds. If it
then goes off, the readiness codes are set to complete.
If it flashes five times, one or more readiness codes are
not set to complete. To set readiness codes from
incomplete to complete, do the procedure for the
appropriate code.
To check the status of a specific DTC system, check the
OBD status in the DTC MENU with the HDS (see page
11-8). This screen displays the code, the current data list
of the enable criteria, and the status of the readiness
testing. NOTE:
Do not turn the ignition switch to LOCK (0) or ACC (I) during the procedure.
All readiness codes are cleared when the battery is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
Low ambient temperatures or excessive stop-and-go traffic may increase the drive time needed to switch
the readiness code from incomplete to complete.
The readiness code will not switch to complete until all the enable criteria are met.
If a fault in the secondary HO2S system caused the MIL to come on, the readiness code cannot be set to
complete until you correct the fault.
ECT SENSOR 1 at 70 °C (158 °F) or more.
IAT SENSOR at 7 °C (20 °F) or more.
Vehicle speed (VSS) above 40 km/h (25 mph). 1. Connect the HDS to the vehicle’s data link connector (DLC), and bring up the READINESS
CODEs screen for Catalyst in the DTCs MENU.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. After about
8 km (5 miles), the readiness code should switch to
complete.
4. If the readiness code is still not set to complete, check for a Temporary DTC with the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.
(cont’d)
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