Faults with the following items will illuminate the MILa. Heated oxygen sensor (HO2S)
b. Mass Air Flow sensor (MAFS)
c. Throttle position sensor (TPS)
d. Engine coolant temperature sensor (ECTS)
e. Idle speed control actuator (ISCA)
f. Injectors
g. ECM
Refer to "INSPECTION CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information.
1. After turning ON the ignition key, ensure that the light illuminates for about 5 seconds and then goes out.
2. If the light does not illuminate, check for an open circuit in the harness, a blown fuse or a blown bulb.
Self-Diagnosis
If a sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code (DTC) is
recorded. In this case, disconnect the battery negative terminal ( - ) for 15 seconds or more, and the diagnosis
memory will be erased.
THE RELATION BETWEEN DTC AND DRIVING PATTERN IN EOBD SYSTEM
1.When the same malfunction is detected and maintained during two sequential driving cycles, the MIL will
automatically illuminate.
2. The MIL will go off automatically if no fault is detected after 3 sequential driving cycles.
3. A Diagnostic Trouble Code(DTC) is recorded in ECM memory when a malfunction is detected after two sequential
driving cycles. The MIL will illuminate when the malfunction is detected on the second driving cycle.
If a misfire is detected, a DTC will be recorded, and the MIL will illuminate, immediately after a fault is first
detected.
13. Knock Sensor (KS) [Bank 1]
14. Knock Sensor (KS) [Bank 2]15. Injector
26. Ignition Coil
16. Accelerator Position Sensor (APS)18. CVVT Oil Control Valve (OCV) [Bank 1]
19. CVVT Oil Control Valve (OCV) [Bank 2]
20. CVVT Oil Temperature Sensor (OTS)
21. Purge Control Solenoid Valve (PCSV)
22. Variable Intake Solenoid (VIS) #1 Valve (Surge Tank
Side)
2007 > 2.7L V6 GASOLINE >
PCM PROBLEM INSPECTION PROCEDURE
1.TEST PCM GROUND CIRCUIT: Measure resistance between PCM and chassis ground using the backside of PCM
harness connector as PCM side check point. If the problem is found, repair it.
Specification (Resistance): 1Ω or less
2. TEST PCM CONNECTOR: Disconnect the PCM connector and visually check the ground terminals on PCM side
and harness side for bent pins or poor contact pressure. If the problem is found, repair it.
3. If problem is not found in Step 1 and 2, the PCM could be faulty. If so, replace the PCM with a new one, and then
check the vehicle again. If the vehicle operates normally then the problem was likely with the PCM.
4. RE - TEST THE ORIGINAL PCM : Install the original PCM (may be broken) into a known- good vehicle and check
the vehicle. If the problem occurs again, replace the original PCM with a new one. If problem does not occur, this
is intermittent problem (Refer to INTERMITTENT PROBLEM PROCEDURE in BASIC INSPECTION
PROCEDURE).
REPLACEMENT
1.Turn ignition switch off.
2. Disconnect the battery ( - ) cable from the battery.
3. Disconnect the PCM connectors (A).
4.Unscrew the PCM mounting bolts (B) and remove the PCM from the air cleaner assembly.
5.Install a new PCM.
PCM installation bolts: 9.8 ~ 11.8 N·m (1.0 ~ 1.2 kgf·m, 7.2 ~ 8.7 lbf·ft)
67Variable Intake Solenoid Valve #2 control output
Manifold Side]
68 Throttle Position Sensor signal (PWM) output ABS/ESP Control Module
69 Cruise "MAIN" lamp control output Cruise "MAIN" Lamp
70 Fuel Pump Relay control output Fuel Pump Relay
71 Variable Intake Solenoid Valve #1 control output Variable Intake Solenoid (VIS) Valve #1 Surge
Tank Side]
72 Immobilizer lamp control output Immobilizer Lamp
73 -y
74 -y
75 -y
76 -y
77 -y
78 Purge Control Solenoid Valve control output Purge Control Solenoid Valve (PCSV)
79 Wheel Speed Sensor [Low] signal input Wheel Speed Sensor (WSS)(Without ABS/ESP
[Euro -
Ⅲ/Ⅳ])
80 Wheel Speed Sensor [High] signal input Wheel Speed Sensor (WSS)(Without ABS/ESP
[Euro -
Ⅲ/Ⅳ])
CONNECTOR [C151- 2] Pin
No. Description
Connected to
1 ETC Motor [- ] control output ETC Motor (in ETC Module)
2 ETC Motor [+] control output ETC Motor (in ETC Module)
3 -y
4 CVVT Oil Temperature Sensor signal input CVVT Oil Temperature Sensor (OTS)
5 -y
6 -y
7 Engine Coolant Temperature Sensor signal input Engine Coolant Temperature Sensor (ECTS)
8 Manifold Absolute Pressure Sensor signal input Manifold Absolute Pressure Sensor (MAPS)
9 -y
10 -y
11 Reference voltage (+5V) Manifold Absolute Pressure Sensor (MAPS)
12 Battery voltage supply after ignition switch Ignition Switch
13 Reference voltage (+5V) Throttle Position Sensor (TPS) #2
14 Sensor ground Throttle Position Sensor (TPS) #1
15 Reference voltage (+5V) Camshaft Position Sensor (CMPS) [Bank 2]
16 Reference voltage (+5V) Throttle Position Sensor (TPS) #1
17 Sensor ground Camshaft Position Sensor (CMPS) [Bank 2]
18 Sensor ground Camshaft Position Sensor (CMPS) [Bank 1]
19 Ignition Coil (Cylinder #6) control output Ignition Coil (Cylinder #6)
20 -y
21 Crankshaft Position Sensor [High] signal input Crankshaft Position Sensor (CKPS)
22 -y
Knock Sensor (KS) [Bank 1], Knock Sensor (KS)
23Sensor Shield Knock Sensor (KS) [Bank 1], Knock Sensor (KS)
[Bank 2]
24 Camshaft Position Sensor [Bank 2] signal input Camshaft Position Sensor (CMPS) [Bank 2]
25 Camshaft Position Sensor [Bank 1] signal input Camshaft Position Sensor (CMPS) [Bank 1]
26 -y
27 -y
28 Sensor ground HO2S [B2 / S1] [Except for LEADED]
29 Sensor ground HO2S [B2 / S2] [Euro -Ⅲ/Ⅳ]
30 Sensor ground HO2S [B1 / S1] [Except for LEADED]
31 Sensor ground HO2S [B1 / S2] [Euro -Ⅲ/Ⅳ]
32 Reference voltage (+5V) Camshaft Position Sensor (CMPS) [Bank 1]
33 Sensor ground Engine Coolant Temperature Sensor (ECTS)
34 Sensor ground Manifold Absolute Pressure Sensor (MAPS),
CVVT Oil Temperature Sensor (OTS)
35 Power ground Chassis Ground
36 Power ground Chassis Ground
37 Power ground Chassis Ground
38 Power ground Chassis Ground
39 Power ground Chassis Ground
40 Ignition Coil (Cylinder #4) control output Ignition Coil (Cylinder #4)
41 Crankshaft Position Sensor [Low] signal input Crankshaft Position Sensor (CKPS)
42 -y
43 -y
44 -y
45 -y
46 -y
47 -y
48 Throttle Position Sensor #1 signal input Throttle Position Sensor (TPS) #1
49 Heated Oxygen Sensor [Bank 1 / Sensor 1] signal
input HO2S (B1/S1) [Except for LEADED]
50 Heated Oxygen Sensor [Bank 1 / Sensor 2] signal
input HO2S (B1/S2) [Euro -
Ⅲ/Ⅳ]
51 Heated Oxygen Sensor [Bank 2 / Sensor 1] signal
input HO2S (B2/S1) [Except for LEADED]
52 Heated Oxygen Sensor [Bank 2 / Sensor 2] signal
input HO2S (B2/S2) [Euro -
Ⅲ/Ⅳ]
53 Knock Sensor (KS) [Bank 2] [High] signal input Knock Sensor (KS) [Bank 2]
54 Knock Sensor (KS) [Bank 2] [Low] signal input Knock Sensor (KS) [Bank 2]
55 Knock Sensor (KS) [Bank 1] [Low] signal input Knock Sensor (KS) [Bank 1]
56 Knock Sensor (KS) [Bank 1] [High] signal input Knock Sensor (KS) [Bank 1]
57 Throttle Position Sensor #2 signal input Throttle Position Sensor (TPS) #2
58 Sensor ground Throttle Position Sensor (TPS) #2
59 -y
60 Ignition Coil (Cylinder #2) control output Ignition Coil (Cylinder #2)
61CVVT Oil Control Valve [Bank 2] control output CVVT Oil Control Valve (OCV) [Bank 2]
62 CVVT Oil Control Valve [Bank 1] control output CVVT Oil Control Valve (OCV) [Bank 1]
63 Injector (Cylinder #2) control output Injector (Cylinder #2)
64 Injector (Cylinder #3) control output Injector (Cylinder #3)
65 -y
66 -y
67 Heated Oxygen Sensor [Bank 2 / Sensor 1]
Heater control output HO2S [B2 / S1] [Except for LEADED]
68 Injector (Cylinder #4) control output Injector (Cylinder #4)
69 Injector (Cylinder #5) control output Injector (Cylinder #5)
70 Heated Oxygen Sensor [Bank 1 / Sensor 1]
Heater control output HO2S [B1 / S1] [Except for LEADED]
71 Injector (Cylinder #6) control output Injector (Cylinder #6)
72 Injector (Cylinder #1) control output Injector (Cylinder #1)
73 Heated Oxygen Sensor [Bank 2 / Sensor 2]
Heater control output HO2S [B2 / S2] [Euro -
Ⅲ/Ⅳ]
74 Heated Oxygen Sensor [Bank 1 / Sensor 2]
Heater control output HO2S [B1 / S2] [Euro -
Ⅲ/Ⅳ]
75 -y
76 Battery Power Battery
77 Ignition Coil (Cylinder #3) control output Ignition Coil (Cylinder #3)
78 Ignition Coil (Cylinder #5) control output Ignition Coil (Cylinder #5)
79 Ignition Coil (Cylinder #1) control output Ignition Coil (Cylinder #1)
80 -y
3. TERMINAL INPUT/OUTPUT SIGNAL
CONNECTOR [C151- 1]
Pin
No. Description
ConditionTypeLevelTest Result
1 2nd CAN [High] IdleDC2.0 ~ 3.0V 2.5V
2 2nd CAN [Low] IdleDC2.0 ~ 3.0V 2.5V
3 - yy y y
4 - yy y y
5 - yy y y
6 - yy y y
7 - yy y y
8 - yy y y
9 - yy y y
10 Power Steering Switch signal
input S/W ON
DCMax. 0.5V
- 0.125V
S/W OFF Battery Voltage13.47V
11 - yy y y
12 - yy y y
13 Clutch Switch signal input yy y y
14 - yy y y
8Manifold Absolute Pressure
Sensor signal input IG ON
Analog 3.9 ~ 4.1V
3.96V
Idle 0.8 ~ 1.6V1.31V
9 - yy y y
10 - yy y y
11 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.91V
IG ON 4.9 ~ 5.1V- 50mV
12 Battery voltage supply after
ignition switch IG OFF
DCMax. 0.5 V
13.87V
IG ON Battery Voltage- 125mV
13 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.89V
IG ON 4.9 ~ 5.1V- 70mV
14 Sensor ground IdleDCMax. 50 mV 19.77mV
15 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.91V
IG ON 4.9 ~ 5.1V- 50mV
16 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.91V
IG ON 4.9 ~ 5.1V- 50mV
17 Sensor ground IdleDCMax. 50 mV 21.1mV
18 Sensor ground IdleDCMax. 50 mV 20.87mV
19 Ignition Coil (Cylinder #6) control
output Idle
Pulse 1st Voltage:
200~400V 278V
ON Voltage: Max. 2V 1.97V
20 - yy y y
21 Crankshaft Position Sensor
[High] signal input Idle
SINE
WAVE Vp_p : Min.1.0V
41.6V
22 - yy y y
23 Sensor Shield IdleDCMax. 50 mV 21.41mV
24 Camshaft Position Sensor [Bank
2] signal input
Idle
Pulse Hi: Vcc
4.95V
Lo: Max . 0.5V - 10mV
25 Camshaft Position Sensor [Bank
1] signal input
Idle
Pulse Hi: Vcc
4.95V
Lo: Max . 0.5V - 10mV
26 - yy y y
27 - yy y y
28 Sensor ground IdleDCMax. 50 mV 20.73mV
29 Sensor ground IdleDCMax. 50 mV 21.9mV
30 Sensor ground IdleDCMax. 50 mV 20.16mV
31 Sensor ground IdleDCMax. 50 mV 20.63mV
32 Reference voltage (+5V) IG OFF
DCMax. 0.5V
4.91V
IG ON 4.9 ~ 5.1V- 50mV
33 Sensor ground IdleDCMax. 50 mV 22.52mV
34 Sensor ground IdleDCMax. 50 mV 20.99mV
35 Power ground IdleDCMax. 50 mV y
36 Power ground IdleDCMax. 50 mV y
37 Power ground IdleDCMax. 50 mV y
38Power ground IdleDCMax. 50 mV y
39 Power ground IdleDCMax. 50 mV y
40 Ignition Coil (Cylinder #4) control
output Idle
Pulse 1st Voltage:
2300~400V 294V
ON Voltage: Max. 2V 1.93V
41 Crankshaft Position Sensor [Low]
signal input Idle
SINE
WAVE Vp_p: Min.1.0V
8.24V
42 - yy y y
43 - yy y y
44 - yy y y
45 - yy y
46 - yy y y
47 - yy y y
48 Throttle Position Sensor #1
signal input C.T
Analog 0.25 ~ 0.9V
0.68V
W.O.T Min. 4.0V4.27V
49 Heated Oxygen Sensor [Bank 1 /
Sensor 1] signal input
Racing
DCRich: 0.6 ~ 1.0V
774mV
Lean: 0 ~ 0.4V 137mV
50 Heated Oxygen Sensor [Bank 1 /
Sensor 2] signal input
Racing
DCRich: 0.6 ~ 1.0V
y
Lean: 0 ~ 0.4V y
51 Heated Oxygen Sensor [Bank 2 /
Sensor 1] signal input
Racing
DCRich: 0.6 ~ 1.0V
705.2mV
Lean: 0 ~ 0.4V 82mV
52 Heated Oxygen Sensor [Bank 2 /
Sensor 2] signal input
Racing
DCRich: 0.6 ~ 1.0V
y
Lean: 0 ~ 0.4V y
53 Knock Sensor (KS) [Bank 2]
[High] signal input Knocking
Variable
Frequency - 0.3 ~ 0.3 V
y
Normal 0 Vy
54 Knock Sensor (KS) [Bank 2]
[Low] signal input Knocking
Variable
Frequency - 0.3 ~ 0.3 V
y
Normal 0 Vy
55 Knock Sensor (KS) [Bank 1]
[Low] signal input Knocking
Variable
Frequency - 0.3 ~ 0.3 V
y
Normal 0 Vy
56 Knock Sensor (KS) [Bank 1]
[High] signal input Knocking
Variable
Frequency - 0.3 ~ 0.3 V
y
Normal 0 Vy
57 Throttle Position Sensor #2
signal input C.T
Analog Min. 4.0V
4.23V
W.O.T 0.25 ~ 0.9V703mV
58 Sensor ground IdleDCMax. 50 mV 21.64mV
59 - yy y y
60 Ignition Coil (Cylinder #2) control
output Idle
Pulse 1st Voltage:
200~400V 305V
ON Voltage: Max. 2V 1.85V
61 CVVT Oil Control Valve [Bank 2]
control output
Idle
PulseBattery Voltage
14.45V
Max. 1.0V 50mV
62 CVVT Oil Control Valve [Bank 1]
control output
Idle
PulseBattery Voltage
14.47V
Max. 1.0V 75mV
Injector (Cylinder #2) control Battery Voltage
14.06V