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Donny
Donny, ASE Certified Technician
Category: Car
Satisfied Customers: 828
Experience:  A.S.E. Master Technician, Over 25 years working in Chrysler dealers, Top tech DaimlerChrysler 1998
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2005 Chrysler sebring: the map sensor and the throttle position sensor

Resolved Question:

I have a 2005 Chrysler sebring with a trouble code P2074 map/sensor throttle position correlation. I replaced the map sensor and the throttle position sensor with no joy, what can I do to fix this??
Submitted: 6 years ago.
Category: Car
Expert:  Donny replied 6 years ago.

Hello

P2074-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION - HIGH FLOW/VACUUM LEAK

Set Condition: If vacuum drops below 1.5 Hg with engine RPM greater than 2000 RPM at closed throttle.

The throttle plate and linkage must be free from binding and carbon build up, ensure the throttle plate is at the idle position, ensure the throttle plate is at the idle position.

This code is enabled on engines with a plastic intake manifold and is intended to shut down the engine if a large crack occurs in the intake manifold.

A large vacuum leak is most likely the cause of this Code.Inspect the Intake Manifold for leaks and cracks.

1 Inspect the Power Brake Booster for any vacuum leaks.

2 Inspect the PCV system for proper operation or any vacuum leaks.

Were any vacuum leaks found?

Yes Repair the vacuum leak as necessary.

No Go To 3

3 Start the engine.

With A Scan tool, monitor the MAP Sensor voltage.

Snap the throttle.

Does the MAP Sensor voltage vary from below 2.0 volts at idle to above 3.5 volts?

Yes Go To 4

No Go To 12

4 Ignition on, engine not running.

With the Scan tool, monitor the TP Sensor voltage while slowly depressing the throttle pedal from the idle position to the wide open throttle position.

Does the voltage start approximately at 0.8 volts and go above 3.5 volts with a smooth transition?

Yes INTERMITTENT CONDITION

No Go To 5

5 Turn the ignition off.

Disconnect the TP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance of the (K6) 5 Volt Supply circuit from the TP Sensor harness connector to the appropriate terminal

Is the resistance below 5.0 ohms?

Yes Go To 6

No Repair the TP Sensor (K6) 5 Volt Supply circuit.

6 Turn the ignition off.

Disconnect the TP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance between ground and the (K6) 5 Volt Supply circuit at the TP Sensor harness connector.

Is the resistance above 100k ohms?

Yes Go To 7

No Repair the (K6) 5 Volt Supply circuit.

7 Turn the ignition off.

Disconnect the TP Sensor harness connector.

With the Scan tool, monitor the TP Sensor voltage.

Ignition on, engine not running.

Connect a jumper wire between the (K22) TP Signal circuit and the (K4) Sensor ground circuit .

Does the TP Sensor voltage change from approximately 4.9 volts to below 0.5 of a volt?

Yes Replace the Throttle Position Sensor.

No Go To 8

8 Turn the ignition off.

Disconnect the TP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance of the (K22) TP Signal circuit from the TP Sensor harness

connector to the appropriate terminal .Is the resistance below 5.0 ohms?

Yes Go To 9

No Repair the (K22) TP Signal circuit.

9 Turn the ignition off.

Disconnect the TP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance between ground and the (K22) TP Signal circuit in the TP Sensor harness connector.

Is the resistance above 100k ohms?

Yes Go To 10

No Repair the (K22) TP Sensor Signal circuit.

10 Turn the ignition off.

Disconnect the TP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance of the (K4) Sensor ground circuit from the TP Sensor harness

connector to the appropriate terminal

Is the resistance below 5.0 ohms?

Yes Go To 11

No Repair the (K4) Sensor Ground circuit.

11 NOTE: Before continuing, check the PCM harness connector terminals for

corrosion, damage, or terminal push out. Repair as necessary.If there are no possible causes remaining, view repair.

Repair

Replace and program the Powertrain Control Module

12 Turn the ignition off.

Disconnect the MAP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance of the (K6) 5 Volt Supply circuit from the MAP Sensor harness connector to the appropriate terminal

Is the resistance below 5.0 ohms?

Yes Go To 13

No Repair the MAP (K6) 5 Volt Supply circuit.

13 Turn the ignition off.

Disconnect the MAP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance between ground and the (K6) 5 Volt Supply circuit at the MAP Sensor harness connector.

Is the resistance above 100k ohms?

Yes Go To 14

No Repair the short to ground in the (K6) 5 Volt Supply circuit.

14 Turn the ignition off.

Disconnect the MAP Sensor harness connector.

With the Scan tool, monitor the MAP Sensor voltage.

Ignition on, engine not running.

Connect a jumper wire between the (K1) MAP Sensor Signal circuit and the (K4)

Sensor ground circuit .

Cycle the ignition switch from off to on.

With the Scan tool, monitor the MAP Sensor voltage.

Does the scan tool display MAP voltage from approximately 4.9 volts to below 0.5 volt?

Yes Replace the MAP Sensor.

No Go To 15

15 Turn the ignition off.

Disconnect the MAP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance of the (K1) MAP Signal circuit from the MAP Sensor harness connector to the appropriate terminal

Is the resistance below 5.0 ohms?

Yes Go To 16

No Repair the (K1) MAP Signal circuit.

16 Turn the ignition off.

Disconnect the MAP Sensor harness connector.

Disconnect the PCM harness connector.

Measure the resistance between ground and the (K1) MAP Signal circuit at the MAP Sensor harness connector.

Is the resistance above 100k ohms?

Yes Go To 17

No Repair the (K1) MAP Signal circuit.

I hope that this helps

If you need more information just let me know

Thank you

Donny

POWERTRAIN CONTROL MODULE C2 - BLACK/ORANGE 38 WAY

CAVCIRCUITFUNCTION
1K96 18TN/LB (2.7L)COIL CONTROL NO. 6
2K95 18TN/DG (2.7L)COIL CONTROL NO. 5
3K94 18TN/LG (2.7L)COIL CONTROL NO. 4
4K58 18BR/DB (2.7L)INJECTOR CONTROL NO. 6
5K38 18GY (2.7L)INJECTOR CONTROL NO. 5
6--
7K93 18TN/OR (2.7L)COIL CONTROL NO. 3
8K35 20GY/YL (2.4L PZEV/2.7L)EGR SOLENOID CONTROL
9K17 18DB/TN (2.0L/2.4L)COIL CONTROL NO. 2
9K92 18TN/PK (2.7L)COIL CONTROL NO. 2
10K19 18BK/GY (2.0L/2.4L)COIL CONTROL NO. 1
10K91 18TN/RD (2.7L)COIL CONTROL NO. 1
11K14 18LB/BRINJECTOR CONTROL NO. 4
12K13 18YL/WTINJECTOR CONTROL NO. 3
13K12 18TNINJECTOR CONTROL NO. 2
14K11 18WT/DBINJECTOR CONTROL NO. 1
15--
16--
17K199 18BR/VT (2.0L/2.4L)O2 1/2 HEATER CONTROL
17K299 18BR/WT (2.7L)O2 2/1 HEATER CONTROL
18K99 18BR/ORO2 1/1 HEATER CONTROL
19K20 18DGGEN FIELD CONTROL
20K2 20TN/BKECT SIGNAL
21K22 20OR/DBTP SIGNAL
22K235 20LG/PK (2.4L PZEV/2.7L)EGR SENSOR SIGNAL
23K1 20DG/RDMAP SIGNAL
24K45 20BK/VTKS RETURN
25K42 20DB/LGKS SIGNAL
26K57 20DB (2.4L PZEV)MAF SENSOR SIGNAL
27K4 20BK/LBSENSOR GROUND 1
28K60 18YL/BKIAC RETURN
29K6 20VT/WT5 VOLT SUPPLY
30K21 20BK/RDIAT SIGNAL
31K41 20BK/DGO2 1/1 SIGNAL
32K902 18BR/DGO2 RETURN (UP)
33K141 20TN/WT (2.0L/2.4L)O2 1/2 SIGNAL
33K241 20LG/RD (2.7L)O2 2/1 SIGNAL
34K44 20TN/YLCMP SIGNAL
35K24 20GY/BKCKP SIGNAL
36--
37--
38K39 18GY/RDIAC MOTOR CONTROL

MANIFOLD ABSOLUTE PRESSURE SENSOR - GRAY 3 WAY

CAVCIRCUITFUNCTION
1K1 20DG/RDMAP SIGNAL
2K4 20BK/LBSENSOR GROUND 1
3K6 20VT/WT5 VOLT SUPPLY

THROTTLE POSITION SENSOR (2.0L/2.4L) - GRAY 3 WAY

CAVCIRCUITFUNCTION
1K6 20VT/WT5 VOLT SUPPLY
2K22 20OR/DBTP SIGNAL
3K4 20BK/LBSENSOR GROUND 1

Donny, ASE Certified Technician
Category: Car
Satisfied Customers: 828
Experience: A.S.E. Master Technician, Over 25 years working in Chrysler dealers, Top tech DaimlerChrysler 1998
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