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Tps error 43 on 95 nissan pick up

Wrong voltages at tps connector

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What is the voltage reading with the part unplugged and at the connector.

Posted on Apr 12, 2014

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Tps error 43 with wrong voltages at conn.


What is the voltage at the connector?

Apr 12, 2014 | 1995 Nissan Pickup

1 Answer

TPS Problem


maybe water in fuel

Nov 23, 2013 | 1996 Nissan Altima

1 Answer

P0120 P0220 faults on a 03 Avalanche. First went into reduced power mode. Cleared faults. Truck still will not go over 35 mph. Did not trip the check engine light.


this is an obd2 trouble code table, it can help you understand the meaning of code.
for p0120,
the possible solutions:
If you have access to a scan tool, with KOEO (Key on engine off) observe the TPS voltage. With throttle closed, voltage should be about .45 volts. It should gradually sweep upwards to approximately 4.5 to 5 volts as you depress the throttle. Sometimes only a scope can capture an intermittent glitch in the TPS signal voltage. If you notice a glitch in the TPS sweep voltage, replace the TPS.
NOTE: Some TPS sensors require fine adjustment. If you aren't comfortable with using a DVOM (Digital Volt Ohm meter) to adjust the new TPS, then it's best to take the vehicle to a shop. If the voltage is not .45 volts (+or- .3 volts or so) with the throttle closed or if the reading is "stuck" then unplug the TPS connector. With KOEO check for 5 volts reference voltage present at the connector and a good ground. You can check the signal circuit for continuity by jumping a fused wire between the ground circuit of the TPS connector and the signal circuit. If the TPS reading on the scan tool now reads zero, then replace the TPS. However if that doesn't change the reading to zero, then check for an open or a short on the signal wire and if none is found, suspect a bad PCM. If manipulating the TPS wiring harness causes any change in idle, then suspect bad TPS.

Jul 20, 2011 | Chevrolet Avalanche Cars & Trucks

1 Answer

Jeep Cherokee 96 will idle but as soon as you give it gas it dies. Replaced the fuel pump and the code reader is not displaying any errors.


u need to have a code reader with data stream....hook that up to ur obd connector an goto data stream..... goto TPS there will b a voltage reading when the jeep is running step on the gas an check for a voltage drop..if it drops u r commanding the fuel pump to deliever less fuel when the engine needs more....if u dont have a voltage reading on ur TPS when running replace TPS (throttle position switch). if u dont have a data stream option u will nedd to bring it to a servivce station for this service

Jul 16, 2011 | 1996 Jeep Cherokee

1 Answer

96 nissan quest code p0120 p1705 the O/D flushes after startup. TPS was replaced but code still exists. Rough idle, loss of power and fuel economy.


this is an obd2 trouble code table, it can help you understand the meaning of code.
and for p0120
the Causes:
Sticking throttle return spring
MAP or TPS connector corrosion
Misrouted harness causing chafing
Bad TPS
Bad PCM
Possible Solutions:
If you have access to a scan tool, with KOEO (Key on engine off) observe the TPS voltage. With throttle closed, voltage should be about .45 volts. It should gradually sweep upwards to approximately 4.5 to 5 volts as you depress the throttle. Sometimes only a scope can capture an intermittent glitch in the TPS signal voltage. If you notice a glitch in the TPS sweep voltage, replace the TPS.
NOTE: Some TPS sensors require fine adjustment. If you aren't comfortable with using a DVOM (Digital Volt Ohm meter) to adjust the new TPS, then it's best to take the vehicle to a shop. If the voltage is not .45 volts (+or- .3 volts or so) with the throttle closed or if the reading is "stuck" then unplug the TPS connector. With KOEO check for 5 volts reference voltage present at the connector and a good ground. You can check the signal circuit for continuity by jumping a fused wire between the ground circuit of the TPS connector and the signal circuit. If the TPS reading on the scan tool now reads zero, then replace the TPS. However if that doesn't change the reading to zero, then check for an open or a short on the signal wire and if none is found, suspect a bad PCM. If manipulating the TPS wiring harness causes any change in idle, then suspect bad TPS.

Jul 11, 2011 | Nissan Quest Cars & Trucks

1 Answer

What could be wrong when you get code p0122 and p0123


throttle position sensor. check the electrical connection to the sensor for corrosion and security.

If the van is running well, you can try and reset the MIL and see if the codes come back.

If there are symptoms such as the engine is stumbling or hesitating, carefully inspect all wiring and connectors that lead to the TPS. More than likely the problem is with the TPS wiring. Check the voltage at the TPS (refer to a service manual for your vehicle for this specific information). If the voltage spikes or is too high (over 4.65 volts with key on, engine off), then that is indicative of a problem. Carefully trace each wire from the TPS wiring harness to check for breaks, rubbing against other components, etc.

Jan 20, 2011 | 1996 Dodge Caravan

3 Answers

2003 jeep wrangler trouble codes p0123, p0121, and p0152. What do they mean? Any help would be appreciated.


A code P0123 may mean that one or more of the following has happened:
  • TPS not mounted securely
  • TPS circuit short to ground or another wire
  • Faulty TPS
  • Damaged computer (PCM)
Possible Solutions If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, carefully inspect all wiring and connectors that lead to the TPS. More than likely the problem is with the TPS wiring. Check the voltage at the TPS (refer to a service manual for your vehicle for this specific information). If the voltage spikes or is too high (over 4.65 volts with key on, engine off), then that is indicative of a problem. Carefully trace each wire from the TPS wiring harness to check for breaks, rubbing against other components, etc.
A code P0121 may mean that one or more of the following has happened:
  • TPS has intermittent open or short internally
  • Harness is rubbing and causing an open or short in the wiring
  • Bad connection at the TPS
  • Bad PCM (less likely)
  • Water or corrosion in connector or sensor
Possible Solutions 1. If you have access to a scan tool, see what the idle and WOT (wide open throttle) readings are for the TPS. Check if they're close to the specifications mentioned above. If not, then replace the TPS and re-check.
2. Check for an intermittent open or short in the TPS signal. To do that, you can't use a scan tool. You'll need an oscilliscope. The reason is because scan tools take samplings of many different readings over just one or two data lines and can miss an intermittent drop out. Hook up your oscilliscope and watch the signal. It should sweep up and down smoothly with no drop outs or spikes.
3. If no problems were noticed, perform a wiggle test. Do this by wiggling the connector and harness while watching the pattern. Does it drop out? If so, replace TPS and re-check.
4. If you have no TPS signal, check for 5 Volt reference at the connector. If it's present, check the ground circuit for open or shorts.
5. Make sure the signal circuit isn't 12V. It should never have battery voltage. If it does, trace circuit for short to voltage and repair.
6. Look for any water in the connector and replace TPS as necessary.
P0152 Oxygen Sensor Circuit High Voltage (Bank 2 Sensor 1)

Feb 16, 2010 | 2003 Jeep Wrangler

1 Answer

P0121 code, 2000 chevy astro


Given that you have replaced the TPS and the PCM, the next step would be to check the connector itself and make sure it is making a good connection and there are no corrosion or anything like that on the connector.

After that, ensure that the TPS has the correct voltage to it, usually its around 5vdc, it should never have full batter voltage to it (12vdc). The PCM usually supplies both the 5vdc reference and the ground for the TPS. Its also entirely possible that (depending on where you bought the TPS) that you were given the wrong one for your vehicle. Not a common thing, but it could happen.

The code will be set if the PCM sees a TPS angle that is not consistent with the RPMs of the engine. If you are having any shifting issues such as hard shifts or the engine having to rev higher to shift, that usually a clear indication there is still something wrong with the TPS circuit even if the TPS itself is good.

Hope this helps.

Dec 31, 2008 | 2000 Chevrolet Astro

1 Answer

Throttle position sensor


if the code keeps comming back then you would first find the wire that goes from the tps to the computer. check for the five volt reference voltage, at the computer and at the tps and then check to see if the return voltage is also at the computer. ( this wire sometimes breaks)

May 28, 2008 | 2004 Nissan Sentra

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