GM 14094368
Neutral Safety Switch

First to service the transmission position switch/sensor for the automatic transaxle-4t40-e/4t45-e, disconnect the negative Battery Cable and also remove the shift linkage and the electrical connectors. After this, remove the park/neutral position switch mounting bolt and nut and the shift selector lever nut and the lever after that dismount the pnp switch. For installation, put the shaft of the shift in n (Neutral) and match the flats of the shift shaft to the switch. Mount the park/neutral position switch mounting bolt and nut to 24 nm (18 ft. Lbs.) and shift lever and nut. Once more, install the park/neutral position switch mounting bolt and nut and tighten the latter to 24 nm (18 ft. Lbs.) and reattach the shift linkage. Make sure that the engine will not be able to start unless it is positioned in the p (Park) or n (Neutral) until the negative battery is attached again.

Begin switch replacement work by undoing left instrument panel sound insulator removal. Disconnect the cruise control release switch electrical connector before you remove the cruise control release switch. Insert the Brake Pedal depressed cruise control release switch into the bracket until the retainer achieves full seat position. Secure the electrical connector to the cruise control release switch then adjust the switch to its proper setting. Initialize installation of the left instrument panel sound insulator.

The replacement of the cruise control release switch requires removing the LH I/P lower insulator panel initially. First disconnect the cruise control release switch electrical connector before removing the switch from its mounting bracket. When installing the cruise control release switch place it on the switch bracket while making sure you hear both audible clicks to confirm it is fully seated. Then, reconnect the electrical connector. Check switch position by grasping the clutch pedal and pulling it all the way back to the pedal stop then listen for audible clicks when the switch settles into its correct position. Place back the LH I/P lower insulator panel after conclusion of the task.

The external component of the park/neutral position (PNP) and back up lamp switch assembly that attaches to the transmission manual shaft operates through four internal switches which track the transmission gear range selector lever position. When the lever moves the pcm applies ignition voltage to each switch circuit so the switch states can transition between open and closed. The pcm determines the selected gear range by comparing real-time voltage combinations against stored tr switch pattern charts when high voltage means open circuit signals and low voltage signals trigger closed circuits. Diagnosing the system involves verifying the correct switch signal values in circuits a, b, c and parity where hi marks ignition voltage signals and low represents zero voltage signals. Inspect all connecters at the pcm and tr switch and other circuits between points for intermittent failures and check these circuits' wiring for possible issues. A disconnected tr switch results in the loss of ground from all tr switch circuits so the pcm detects open circuits that produce hi signals on the scan tool range information displays. To test the tr switch wiring check for an open signal voltage from the pcm through a fused jumper wire which enables the pcm testing and allows the scan tool range signal to show low when properly grounded. The process can be performed multiple times to verify correct device operation.

Begin yhe adjustment of cruise control release switch with proper insertion into its bracket. Draw the Brake Pedal slowly backward to stop the click sounds which enables switch movement within the retainer bracket for adjustments. Post-release pedal verification requires checking that the switches for release and stoplamp + torque converter clutch activate within 25.4 mm (1 in) pedal extension. Verify that the release switches activate together or before brake applications but understand that Brake Pedal contact lasts up to 25.4 mm (1 in) before the cruise control disconnects.

A technician must start by unmounting the front floor console when performing transmission position switch/sensor maintenance work. Begin by disconnecting the park neutral position switch electrical connector then remove the bolts that secure the park neutral position switch. Extract the switch carefully from its position in the transmission control. The transmission control must be set to neutral before placing the tang portion of the park neutral position switch into the transmission control slot followed by adjustment according to installation needs. After attaching the park neutral position switch electrical connector you should reposition the front floor console.

No, follow the same initial steps, ensuring the transaxle manual shaft is in Neutral, align the flats, install the switch, tighten the range switch bolts to 20 Nm (15 ft. lbs.), and complete the installation of the lever and nut as previously described.

The driver's side inflator module, the cluster trim plate, and the cluster.

First, remove the front floor console and disconnect the park neutral position switch electrical connector.

Begin by removing the shift linkage and disconnecting the electrical connector.

Take out the park/neutral position switch mounting bolts and remove the park/neutral position switch assembly.

Carefully release the shift control cable end clip from the transmission shift lever stud.

It is crucial to ensure that the engine will only start in the P (Park) or N (Neutral) position; readjust the switch if the engine starts in any other position.

First, remove the shift linkage and disconnect the electrical connector.

Install the tang of the park neutral position switch into the slot on the transmission control and adjust the switch accordingly.

Use the Park/Neutral Position Switch Aligner (J 41364-A) to align the switch with the manual shaft, ensuring proper alignment with the tool.

Reposition the transmission shift cable and bracket, and disconnect the park/neutral position switch electrical connectors.

Shift the transmission into NEUTRAL.

Disconnect the park/neutral position switch electrical connectors.

Ensure the two lower slots on the switch align with the lower tabs on the tool and the upper pin on the tool lines up with the slot on the top of the switch.

Ensure the cruise control release switch is fully seated to the cruise control release switch bracket by pushing the switch down toward the bracket until audible clicks are heard.

Remove the tool and, if applicable, the positive assurance bracket.