The following abbreviations are used to represent values for Control Module Pin-Out data
I Input PG Power Ground CAN CAN Network D Serial and Encoded Data
O Output SS Sensor / Signal Supply V SCP SCP Network V Voltage (DC)
B+ Battery Voltage SG Sensor / Signal Ground D2 D2B Network PWM Pulse Width Modulated
CAUTION: The information on this data page is furnished to aid the user in understanding circuit operation. THIS INFORMATION SHOULD BE USED FOR
REFERENCE ONLY.
NOTE: The characteristics listed are approximately those that can be expected at the control module connector pins with all circuit connections made and all
components connected and fitted.
Refer to the front of this book for detailed information and illustrations regarding the location and identification of harnesses, relays, fuses, grounds, control
modules and control module pins.
DATE OF ISSUE: December 2001
Fig. 03.1
COMPONENTS
Component Connector(s) Connector Description Location
APP SENSOR PA1 6-WAY / BLACK ABOVE ACCELERATOR PEDAL
BRAKE ON / OFF SWITCH PA3 3-WAY / BLACK TOP OF BRAKE PEDAL
CENTRAL JUNCTION FUSE BOX CA75 8-WAY / GREY PASSENGER COMPARTMENT, FRONT BULKHEAD LH SIDE
CA76 16-WAY / GREEN
CA77 2-WAY / GREY
CA78 16-WAY / GREY
IP1 14-WAY / GREEN
IP2 16-WAY / GREY
IP3 2-WAY / GREY
IP4 14-WAY / GREY
JB50 4-WAY / GREY
JB51 16-WAY / BLUE
JB52 2-WAY / BLACK
CKP SENSOR EN12 2-WAY / BLACK ADJACENT TO ENGINE CRANKSHAFT PULLEY
CMP SENSOR 1 EN43 2-WAY / BLACK BANK 1 CYLINDER HEAD, FRONT
CMP SENSOR 2 EN33 2-WAY / BLACK BANK 2 CYLINDER HEAD, FRONT
ECT SENSOR EN18 2-WAY / BLACK ENGINE VEE, FRONT
EFT SENSOR IL8 2-WAY / BLACK FUEL RAIL, FRONT
ENGINE CONTROL MODULE (2.5L & 3.0L) EN16 134-WAY / BLACK ENGINE COMPARTMENT, FRONT BULKHEAD RH SIDE
EOT SENSOR EN25 2-WAY / BLACK ADJACENT TO ENGINE OIL FILTER
EVAP CANISTER CLOSE VALVE FT5 2-WAY / BLACK REARWARD OF FUEL TANK
EVAP CANISTER PURGE VALVE JB170 2-WAY / BLACK REARWARD OF FUEL TANK
FTP SENSOR FT1 3-WAY / BLACK TOP OF FUEL TANK
HO2 SENSOR DOWNSTREAM 1/2 EN14 4-WAY / BLACK BANK 1 EXHAUST
HO2 SENSOR DOWNSTREAM 2/2 EN9 4-WAY / BLACK BANK 2 EXHAUST
HO2 SENSOR UPSTREAM 1/1 EN37 4-WAY / GREY BANK 1 EXHAUST
HO2 SENSOR UPSTREAM 2/1 EN32 4-WAY / GREY BANK 2 EXHAUST
IMT SOLENOID VALVE 1 EN999 2-WAY / BLACK INTAKE MANIFOLD TOP
IMT SOLENOID VALVE 2 EN998 2-WAY / BLACK INTAKE MANIFOLD BOTTOM
IP SENSOR IL7 3-WAY / BLACK FUEL RAIL REAR
KNOCK SENSOR EN23 2-WAY / BLACK ENGINE VEE
MAF SENSOR EN6 5-WAY / BLACK ENGINE AIR INTAKE DUCT
MAP SENSOR EN8 4-WAY / BLACK INTAKE MANIFOLD, REAR
POWER DISTRIBUTION FUSE BOX — — ENGINE COMPARTMENT LH SIDE
THROTTLE BODY EN10 2-WAY / BLACK ENGINE INTAKE MANIFOLD
EN13 4-WAY / BLACK
THROTTLE MOTOR EN10 2-WAY / BLACK ENGINE INTAKE MANIFOLD
THROTTLE MOTOR RELAY — — POWER DISTRIBUTION FUSE BOX R11
TP SENSOR (2.5L & 3.0L) EN13 4-WAY / BLACK ENGINE INTAKE MANIFOLD
VVT SOLENOID VALVE 1 EN61 2-WAY / BLACK BANK 1 CYLINDER HEAD
VVT SOLENOID VALVE 2 EN42 2-WAY / BLACK BANK 2 CYLINDER HEAD
HARNESS IN-LINE CONNECTORS
Connector Connector Description Location
CA5 12-WAY / BLACK / CABIN HARNESS TO FUEL TANK LINK LEAD TOP OF FUEL TANK
CA10 22-WAY / GREY / ENGINE HARNESS TO CABIN HARNESS BELOW THE GLOVEBOX
CA170 16-WAY / GREEN / IN-LINE CONNECTOR LH LOWER A POST
EN4 12-WAY / BLACK / ENGINE HARNESS TO INJECTOR RAIL HARNESS ADJACENT TO THE TRANSMISSION BELL HOUSING
JB1 42-WAY / BLACK / JUNCTION BOX HARNESS TO ENGINE HARNESS ADJACENT TO LH SUSPENSION TURRET
JB2 16-WAY / GREEN / JUNCTION BOX HARNESS TO CABIN HARNESS ADJACENT TO CENTRAL JUNCTION FUSE BOX
GROUNDS
Ground Location
G8 ENGINE COMPARTMENT / RH INNER WHEEL ARCH
FOR CONTROL MODULE PIN-OUT INFORMATION, UNFOLD PAGE TO LEFT.
CONTROL MODULE PIN-OUT INFORMATION
Engine Control Module (2.5L & 3.0L)
Pin Description and Characteristic
O EN16-001 HO2 SENSOR HEATER CONTROL – 1/1: PWM, 1 CYCLE PER 128 ms, VARIABLE DUTY CYCLE
O EN16-002 HO2 SENSOR HEATER CONTROL – 1/1: PWM, 1 CYCLE PER 128 ms, VARIABLE DUTY CYCLE
PG EN16-004 POWER GROUND 1: GROUND
PG EN16-005 POWER GROUND 2: GROUND
I EN16-006 ENGINE CRANK: B+
I EN16-007 IGNITION ON: B+
I EN16-008 BRAKE ON / OFF SWITCH: NORMALLY OPEN / B+ WHEN ACTIVATED
I EN16-010 INERTIA SWITCH: NORMALLY CLOSED / OPEN CIRCUIT WHEN ACTIVATED
SS EN16-012 SENSOR POWER SUPPLY 1: NOMINAL 5 V
SS EN16-013 SENSOR POWER SUPPLY 2: NOMINAL 5 V
SG EN16-017 SMALL SIGNAL GROUND 1: GROUND
SG EN16-018 SMALL SIGNAL GROUND 2: GROUND
SG EN16-019 SENSOR GROUND 1: GROUND
SG EN16-020 SENSOR GROUND 2: GROUND
B+ EN16-022 BATTERY POWER SUPPLY: B+
B+ EN16-023 EMS SWITCHED POWER SUPPLY 1: B+
B+ EN16-024 EMS SWITCHED POWER SUPPLY 2: B+
SG EN16-029 HO2 SENSOR HEATER GROUND – 1/1: GROUND
SG EN16-030 HO2 SENSOR HEATER GROUND – 1/1: GROUND
I EN16-031 PARK / NEUTRAL SWITCH (AUTOMATIC TRANSMISSION): NORMALLY CLOSED / GROUND WHEN ACTIVATED
I EN16-031 CLUTCH PEDAL SAFETY SWITCH (MANUAL TRANSMISSION): NORMALLY OPEN / B+ WHEN ACTIVATED
I EN16-036 CRANKSHAFT SENSOR SIGNAL: PULSED SIGNAL, 70 PULSES PER ENGINE CYCLE
SG EN16-037 CRANKSHAFT SENSOR SIGNAL GROUND: GROUND
O EN16-038 INTAKE MANIFOLD TUNING VALVE SOLENOID DRIVE – 1 / TOP: GROUND WHEN ACTIVATED
O EN16-039 INTAKE MANIFOLD TUNING VALVE SOLENOID DRIVE – 2 / BOTTOM: GROUND WHEN ACTIVATED
O EN16-040 EMS CONTROL RELAY DRIVE: TO ACTIVATE, ECM SWITCHES CIRCUIT TO GROUND
O EN16-041 STARTER RELAY DRIVE: TO ACTIVATE, ECM SWITCHES CIRCUIT TO GROUND
SG EN16-043 TP AND APP SIGNALS SHIELD: GROUND
I EN16-044 MASS AIR FLOW SENSOR SIGNAL: NOMINAL 0 – 5 V BY ENGINE OPERATING CONDITION
SG EN16-045 MASS AIR FLOW SENSOR GROUND: GROUND
SG EN16-046 MASS AIR FLOW SENSOR GROUND: GROUND
I EN16-050 ENGINE FUEL TEMPERATURE SENSOR SIGNAL, NOMINAL 0 – 5 V: NTC SENSOR – VOLTAGE DECREASES AS TEMPERATURE INCREASES
O EN16-052 THROTTLE MOTOR RELAY DRIVE: TO ACTIVATE, ECM SWITCHES CIRCUIT TO GROUND
O EN16-053 GENERATOR CHARGE: VARIABLE VOLTAGE
SG EN16-054 THROTTLE MOTOR GROUND: GROUND
O EN16-055 HO2 SENSOR HEATER CONTROL – 2/1: PWM, 1 CYCLE PER 128 ms, VARIABLE DUTY CYCLE
O EN16-056 HO2 SENSOR HEATER CONTROL – 2/1: PWM, 1 CYCLE PER 128 ms, VARIABLE DUTY CYCLE
I EN16-065 GENERATOR FIELD RETURN SIGNAL: VARIABLE VOLTAGE BY GENERATOR OPERATING CONDITION
O EN16-066 EV AP CANISTER PURGE VALVE DRIVE: PWM, 10 Hz, POSITIVE DUTY CYCLE RANGE 0.04% – 100%
O EN16-067 EV AP CANISTER CLOSE VALVE DRIVE: TO CLOSE, ECM SWITCHES CIRCUIT TO GROUND
I EN16-068 BANK 2 CAMSHAFT SENSOR SIGNAL: PULSED SIGNAL, 4 PULSES PER ENGINE CYCLE
SG EN16-069 BANK 2 CAMSHAFT SENSOR GROUND: GROUND
I EN16-070 ENGINE COOLANT TEMPERATURE SENSOR SIGNAL, NOMINAL 0 – 5 V: NTC SENSOR – VOLTAGE DECREASES AS TEMPERATURE INCREASES
I EN16-071 INTAKE AIR TEMPERATURE SENSOR SIGNAL, NOMINAL 0 – 5 V: NTC SENSOR – VOLTAGE DECREASES AS TEMPERATURE INCREASES
I EN16-073 INJECTION PRESSURE SENSOR SIGNAL, NOMINAL 0 – 5 V: POTENTIOMETER – VOLTAGE DECREASES AS PRESSURE INCREASES
I EN16-075 THROTTLE POSITION SENSOR 1 SIGNAL: IDLE = 0.74 V; FULL THROTTLE = 3.97 V
I EN16-076 THROTTLE POSITION SENSOR 2 SIGNAL: IDLE = 1.65 V; FULL THROTTLE = 4.20 V
I EN16-078 ENGINE OIL TEMPERATURE SENSOR SIGNAL, NOMINAL 0 – 5 V: NTC SENSOR – VOLTAGE DECREASES AS TEMPERATURE INCREASES
I EN16-079 GENERATOR LOAD: B+ = NORMAL, AFTER-START SWITCH-ON; GROUND = GENERATOR FAILURE, AFTER-START SWITCH-ON
O EN16-080 THROTTLE MOTOR DRIVE: B+ TO ACTIVATE MOTOR
SG EN16-081 HO2 SENSOR HEATER GROUND – 2/1: GROUND
SG EN16-082 HO2 SENSOR HEATER GROUND – 2/1: GROUND
I EN16-083 HO2 SENSOR 1/1 SIGNAL: VARIABLE CURRENT
I EN16-084 HO2 SENSOR 1/1 SIGNAL: CONSTANT CURRENT
SG EN16-091 HO2 SENSOR HEATERS 1/2, 2/2 GROUND: GROUND
O EN16-092 HO2 SENSOR HEATER CONTROL – 1/2: PWM, 1 CYCLE PER 256 ms, POSITIVE DUTY CYCLE RANGE 0 ms = 0%, 77 ms = 30%, 256 ms = 100%
O EN16-093 HO2 SENSOR HEATER CONTROL – 2/2: PWM, 1 CYCLE PER 256 ms, POSITIVE DUTY CYCLE RANGE 0 ms = 0%, 77 ms = 30%, 256 ms = 100%
I EN16-094 BANK 1 CAMSHAFT SENSOR SIGNAL: PULSED SIGNAL, 4 PULSES PER ENGINE CYCLE
SG EN16-095 BANK 1 CAMSHAFT SENSOR GROUND: GROUND
I EN16-098 KNOCK SENSOR SIGNAL: PULSED SIGNAL
SG EN16-100 SENSOR SHIELD: GROUND
I EN16-102 ACCELERATOR PEDAL POSITION SENSOR 1 SIGNAL: FOOT OFF = 0.97 V; FULLY DEPRESSED = 3.33 V
I EN16-103 ACCELERATOR PEDAL POSITION SENSOR 2 SIGNAL: FOOT OFF = 3.97 V; FULLY DEPRESSED = 0.84 V
I EN16-104 FUEL TANK PRESSURE SENSOR SIGNAL, NOMINAL 0 – 5 V: VOLTAGE DECREASES AS PRESSURE INCREASES
D EN16-105 SERIAL DATA LINK: SERIAL COMMUNICATION
O EN16-106 THROTTLE MOTOR DRIVE: B+ TO ACTIVATE MOTOR
I EN16-107 HO2 SENSOR 2/1 SIGNAL: VARIABLE CURRENT
I EN16-108 HO2 SENSOR 2/1 SIGNAL: CONSTANT CURRENT
O EN16-109 BANK 1 VVT SOLENOID VALVE: PWM, 300 Hz, POSITIVE DUTY CYCLE RANGE 0% – 100%
O EN16-110 BANK 2 VVT SOLENOID VALVE: PWM, 300 Hz, POSITIVE DUTY CYCLE RANGE 0% – 100%
SG EN16-111 BANK 1 FUEL INJECTORS (1, 3, 5) GROUND: GROUND
SG EN16-116 BANK 2 FUEL INJECTORS (2, 4, 6) GROUND: GROUND
C EN16-123 CAN –
C EN16-124 CAN +
I EN16-127 MAP SENSOR SIGNAL, NOMINAL 0 – 5 V: VOLTAGE INCREASES AS MANIFOLD ABSOLUTE PRESSURE INCREASES
I EN16-128 HO2 SENSOR 1/2 SIGNAL, NOMINAL 1 V SWING: 0.1 – 0.9 V SWING
I EN16-129 HO2 SENSOR 2/2 SIGNAL, NOMINAL 1 V SWING: 0.1 – 0.9 V SWING
SG EN16-130 HO2 SENSORS SHIELD: GROUND
B+ EN16-134 THROTTLE MOTOR POWER SUPPLY: B+ WHEN RELAY ACTIVATED
NOTE: Refer to the Appendix at the rear of this book for Network Messages.