OBD P-code Lookup
May 7th, 2011, 6:23 PM
#23
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I have a problem with '05 Uplander. Was cruising along in the country about 55-60 MPH, the Check Eng light came on with a warning ping and the Reduced Power came up. I was doing OK for a few miles but then I advanced the throttle to go up a hill and the car died. I pulled over. Power steering never felt better by the way after manhandling it with no power. Well anyway I waited a few minutes and started, still had Check Eng light but no Reduced Power message. I went for about 20 miles. I stopped at a store close to home and when I started the car back up it stalled about 4 more times in the aprox 4 mile trip home from store.
I went by O'Reilly and used the data download and got codes 2120, 2125 & 2138. Can not find these coeds anywhere. Could be these are data machine specific, either way not idea what they represent. My gut feeling tells me it may be a throttle body sensor, but want something more concrete than my gut when I go to doing recreational maintenance and changing parts out just because I can.
Any ideas?
I went by O'Reilly and used the data download and got codes 2120, 2125 & 2138. Can not find these coeds anywhere. Could be these are data machine specific, either way not idea what they represent. My gut feeling tells me it may be a throttle body sensor, but want something more concrete than my gut when I go to doing recreational maintenance and changing parts out just because I can.
Any ideas?
May 7th, 2011, 8:51 PM
#24
Welcome to the forum.
The DTCs mean:
P2120 Accelerator Pedal Position (APP) Sensor 1 Circuit
P2125 Accelerator Pedal Position (APP) Sensor 2 Circuit
P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation
They basically mean an electrical problem with the APP sensor or circuit. If it were just P2138, there's a TSB you might want to check out. See TSB_07-06-04-019A.pdf - Windows Live.
The DTCs mean:P2120 Accelerator Pedal Position (APP) Sensor 1 Circuit
P2125 Accelerator Pedal Position (APP) Sensor 2 Circuit
P2138 Accelerator Pedal Position (APP) Sensor 1-2 Correlation
They basically mean an electrical problem with the APP sensor or circuit. If it were just P2138, there's a TSB you might want to check out. See TSB_07-06-04-019A.pdf - Windows Live.
December 28th, 2013, 6:03 PM
#27
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Pcodes: p0740,785,761 for 06 chevy avalanche
Hi Everyone,
my name is ted, im writing this problems that i had about these 3 codes
p740 -torque converter clutch circiut mulfunction.
p785- shift timing solenoid mulfunction.
p761- shift solenoid C performance stuck off.
is there anyone out there encounter this problems if so i need some help for any ideas that you might have, this will be able to save me money, I appreciated for any help.
my name is ted, im writing this problems that i had about these 3 codes
p740 -torque converter clutch circiut mulfunction.
p785- shift timing solenoid mulfunction.
p761- shift solenoid C performance stuck off.
is there anyone out there encounter this problems if so i need some help for any ideas that you might have, this will be able to save me money, I appreciated for any help.
September 26th, 2023, 8:47 AM
#29
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2010 malibu 2.4 p1400
- P1400 Differential Pressure Feedback Electronic Sensor circuit Low Voltage.
- P1401 Differential Pressure Feedback Electronic Sensor circuit High Voltage.
- P1403 Differential Pressure Feedback Electronic Sensor Hoses Reversed.
- P1405 Differential Pressure Feedback Electronic Sensor circuit Upstream Hose.
- P1406 Differential Pressure Feedback Electronic Sensor circuit Downstream Hose.
- P1407 EGR No Flow Detected.
- P1408 EGR Flow out of Self-Test Range.
- P1409 EGR Vacuum Regulator circuit malfunction.
- P1410 EGR Barometric Pressure Sensor VREF Voltage.
- P1409 Electronic Vacuum Regulator Control circuit fault.
- P1411 Secondary Air is not being diverted.
- P1413 Secondary Air Injection System Monitor circuit Low Voltage.
- P1414 Secondary Air Injection System Monitor circuit High Voltage.
- P1442 Secondary Air Injection System Monitor circuit High Voltage.
- P1443 Evaporative Emission Control System - Vacuum System -Purge Control Solenoid or Purge Control Valve fault.
- P1444 Purge Flow Sensor circuit Input Low.
- P1445 Purge Flow Sensor circuit Input High.
- P1450 Inability of Evaporative Emission Control System to Bleed Fuel Tank.
- P1451 Lack of Response From Passive Anti-Theft System Module - Engine Disabled.
- P1452 Inability of Evaporative Emission Control System to Bleed Fuel Tank.
- P1455 Substantial Leak or Blockage in Evaporative Emission Control System.
- P1460 Wide Open Throttle Air Conditioning Cutoff circuit malfunction.
- P1461 Air Conditioning Pressure Sensor circuit Low Input.
- P1462 Air Conditioning Pressure Sensor circuit high Input.
- P1463 Air Conditioning Pressure Sensor Insufficient Pressure change.
- P1464 ACCS to PCM High During Self-Test.
- P1469 Low Air Conditioning Cycling Period.
- P1473 Fan Secondary High with Fans Off.
- P1474 Low Fan Control Primary circuit.
- P1479 High Fan Control Primary circuit.
- P1480 Fan Secondary Low with Low Fans On.
- P1481 Fan Secondary Low with High Fans On.
- P1483 Power to Cooling Fan Exceeded Normal Draw.
- P1484 Variable Load Control Module Pin 1 Open.
- P1500 Vehicle Speed Sensor Intermittent.
- P1501 Programmable Speedometer & Odometer Module/Vehicle Speed Sensor Intermittent circuit-failure.
- P1502 Invalid or Missing Vehicle Speed Message or Brake Data.
- P1504 Intake Air Control circuit malfunction.
- P1505 Idle Air Control System at Adaptive Clip.
- P1506 Idle Air Control Over Speed Error.
- P1507 Idle Air Control Under Speed Error.
- P1512 Intake Manifold Runner Control Stuck Closed.
- P1513 Intake Manifold Runner Control Stuck Closed.
- P1516 Intake Manifold Runner Control Input Error.
- P1517 Intake Manifold Runner Control Input Error.
- P1518 Intake Manifold Runner Control fault - Stuck Open.
- P1519 Intake Manifold Runner Control Stuck Open.
- P1520 Intake Manifold Runner Control circuit fault.
- P1519 Intake Manifold Runner Control fault - Stuck Closed.
- P1520 Intake Manifold Runner Control fault.
- P1530 Open or Short to A/C Compressor Clutch circuit.
- P1537 Intake Manifold Runner Control Stuck Open.
- P1538 Intake Manifold Runner Control Stuck Open.
- P1539 Power to A/C Compressor Clutch circuit Exceeded Normal Current Draw.
- P1549 Intake Manifold Temperature Valve Vacuum Actuator Connection.
- P1550 Power Steering Pressure Sensor out of Self-Test Range.
- P1605 PCM Keep Alive Memory Test Error.
- P1625 Voltage to Vehicle Load Control Module Fan circuit not detected.
- P1626 Voltage to Vehicle Load Control Module circuit not detected.
- P1650 Power Steering Pressure Switch out of Self-Test Range.
- P1651 Power Steering Pressure Switch Input fault.
- P1700 Transmission system problems.
- P1701 Reverse Engagement Error.
- P1702 Transmission system problems.
- P1703 Brake On/Off Switch out of Self-Test Range.
- P1704 Transmission system problems.
- P1705 Manual Lever Position Sensor out of Self-Test Range.
- P1709 Park or Neutral Position Switch out of Self-Test Range.
- P1710 Transmission system problems.
- P1711 Transmission Fluid Temperature Sensor out of Self-Test Range.
- P1728 Transmission system problems.
- P1729 4x4 Low Switch Error.
- P1740 Transmission system problems.
- P1741 Torque Converter Clutch Control Error.
- P1742 Torque Converter Clutch Solenoid Faulty.
- P1743 Torque Converter Clutch Solenoid Faulty.
- P1744 Torque Converter Clutch System Stuck in Off Position.
- P1745 Transmission system problems.
- P1746 Electronic Pressure Control Solenoid - Open circuit.
- P1747 Electronic Pressure Control Solenoid - Short circuit.
- P1749 Electronic Pressure Control Solenoid Failed Low.
- P1751 Shift Solenoid No. 1 Performance.
- P1754 Coast Clutch Solenoid circuit malfunction.
- P1756 Shift Solenoid No. 2 Performance.
- P1760 Transmission system problems.
- P1761 Shift Solenoid No. 3 Performance.
- P1762 Transmission system problems.
- P1767 Transmission system problems.
- P1780 Transmission Control Switch circuit is out of Self-Test Range.
- P1781 4x4 Low Switch is out of Self-Test Range.
- P1783 Transmission Over-Temperature Condition.
- P1784 Transmission system problems.
- P1785 Transmission system problems.
- P1786 Transmission system problems.
- P1787 Transmission system problems.
- P1788 Transmission system problems.
- P1789 Transmission system problems.
- P1870 Transmission system problems.
- P1900 Transmission system problems.
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