Chevrolet 24229422 Switch, Parking/Neutral Position & Back Up Lamp

Various engine sensors and components have checking procedures,the engine coolant temperature (ECT) sensor is a thermistor that changes resistance with temperature, and a failure in the circuit can cause trouble codes. The resistance should be measured when cold and warm while ensuring reference voltage from PCM is around 5.0 volts for the verification. Manifold Absolute Pressure (MAP) Sensor monitors changes in intake manifold pressure then varies its voltage output accordingly. Look at the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes. Intake Air Temperature (IAT) Sensor acts as a thermistor where you can measure its resistance at different temperatures to make sure it changes as expected. Also, use a scan tool to monitor the IAT sensor for performance. The oxygen sensor in exhaust detects oxygen content which you can check its millivolt signal while warming up your engine. Check whether the oxygen sensor heater has correct voltage or not. Vehicle Speed Sensor (VSS) provides speed data to PCM which can be checked for reference voltage. Depending on the type of engine, Camshaft Sensor and Crankshaft Sensor should be checked for resistance and proper signal output. Finally, Knock Sensors detect engine knock which should be checked for reference voltage and resistance. If any component fails these checks, replacement may be necessary.

As of 1995 models, this switch makes sure your engine can only start when you have it either in Park or Neutral. Additionally, it completes the circuit connecting your backup lights when you switch to Reverse. When you start the engine and it's not in Park or Neutral, the switch that controls this needs either readjusting or replacing. Glue the safety stand under the car and disconnect the power wire from the control switch. When the key is off, look for current flowing between the switch terminals: there should be connection when the shift lever is in Park or Neutral and no connection in other positions, except for connection to the back-up lights while Reverse is chosen. When the switch shows problems, adjust it first and try again. If the switch keeps failing tests, you must replace it. Before taking off the shift control switch, apply the parking brake and put the transmission into neutral. Cut power from the vehicle, lift it onto jack stands, disconnect the battery's negative end, remove the shaft nut, unplug the electrical connection, unscrew the mounting bolts, and pull the switch off the shaft using care. To put the switch in, follow the manufacturer's guide to adjust it with their special tool. Make sure the detents match the tool's points and the locator pin is right where it should be. Before putting the switch on the shaft, clean away any rough edges and smooth them with a file. Then center the switch's flat sides over the shaft's flat sides, place it on, and slide until the mounting bracket's bottom touches the transmission ears. After putting the switch mounting bolts on and tightening them to their needed force, take out the tool for adjustments, and you're done with the installation. Turn everything back around to cut it all loose like you did at the beginning, except fasten the handle's holding nut to the correct tightness.

For 1995 and earlier models, ensure the engine starts only in Park or Neutral. The switch is at the steering column's bottom. Set the parking brake and selector in Neutral. Rotate the switch to Low, then to Park to set correctly. If malfunctioning, replacement might be needed. For removal, set to Neutral, disconnect electrical connectors, and spread tangs to pull out the switch. For installation, align the tang with the shift tube hole, press onto the column, and adjust. For 1996 and later, apply the brake, set to Neutral, disconnect the battery, and raise the vehicle. Remove the lever, connector, and switch retaining bolts. File burrs on the shaft if found. Install using an adjustment tool, align switch hub flats, secure with bolts, install the lever, and test the switch.

Remove the manual lever retaining nut and remove the manual lever from the manual shaft.

The starter/Neutral safety switch prevents the engine from starting unless the clutch pedal is depressed for manual transmission or the shift lever is in Neutral or Park for automatic transmission.

Firmly apply the parking brake and set the shift lever to Neutral. Pry the shift cable from the transmission shift lever ball-stud, remove the nut retaining the shift lever to the shaft, and take off the lever. Disconnect the electrical connector, remove the mounting bolts, and slide the switch off the shaft. Lightly file the shaft's end if needed. To install the switch with the shaft still in Neutral, align the switch's flats with those on the shaft, lower the switch onto the shaft, and install the bolts. Adjust the switch's alignment by moving it as necessary. Reinstall the shift lever and cable, verify starting in Park and Neutral, and adjust further if needed by loosening the mounting bolts and rotating the switch slightly until it functions correctly.

For 1994 models, first, remove the steering column insulator panel and unplug the electrical connector from the switch terminals. Then, use an ohmmeter to check continuity across the switch terminals. There should be continuity with the shift lever in Park or Neutral, and no continuity in any other position.

While preventing the shift shaft and lever from rotating, remove the nut attaching the transmission shift lever to the shift shaft, ensuring the transmission remains in the neutral position before removing the lever.

The purpose of the starter safety switch is to prevent the engine from being cranked unless certain conditions are met.

The ignition key should come out only in the Lock position.

If the Park/Neutral switch doesn't operate as described for 1994 models, it should be replaced.

The Park/Neutral Position switch serves as an information sensor for the Powertrain Control Module (PCM). It prevents engine start in any gear other than park or neutral and activates the back-up lights when the shift lever is in reverse.

1. Disconnect the negative battery cable. 2. Apply the parking brake. 3. Place the shift lever in Neutral. 4. Locate the PNP switch on the transmission. 5. Disconnect the shift cable and electrical connectors. 6. Remove the manual lever retaining nut and carefully detach the manual lever without moving it from the Neutral position. 7. Remove the switch retaining bolts to detach the switch from the transmission.

The manifold absolute pressure (MAP) sensor monitors intake manifold pressure changes and varies its voltage output accordingly. To check it, you should check the reference voltage and signal voltage with the ignition on and engine off, and observe voltage changes as the engine's vacuum changes.

YES IT DOES