# Service bulletin 1801220A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10223597
- Published by NHTSA: 2022\-10\-17
- Manufacturer's number: 1801220A
- Manufacturer's date: 2020\-06\-30
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one of the followingDTCs have been set:P2C90 \- Crankcase Ventilation System \- Hose "A" Disconnected. P0607 \- ECU Internal Performance. P0506 \- Idle Speed Performance Lower Than Expected.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10223597-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10223597-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Trouble codes named

P0506, P0607, P2C90

## Vehicles listed

- 2020 JEEP WRANGLER

## Other bulletins for the same vehicles and component

- [S2321000005](/bulletins/10248561.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Fluid Leak From Under The Vehicle.
- [S2321000005](/bulletins/10244400.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. Transmission Fluid Leak From Under The Vehicle.
- [1807023](/bulletins/10241090.md), 2023-08-21, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find that the one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: ? \*\*P02EE \- CYLINDER 1 INJECTOR CIRCUIT PERFORMANCE. ? P02EF \- CYLINDER 2 INJECTOR CIRCUIT PERFORMANCE. ? P02F0 \- CYLINDER 3 INJECTOR CIRCUIT PERFORMANCE. ? P02F1 \- CYLINDER 4 INJECTOR CIRCUIT PERFORMANCE. \*\* ? P0335 \- Crankshaft Position Sensor Circuit. ? P0339 \- Crankshaft Position Sensor Intermittent. ? P2C90 \- Crankcase Ventilation System \- Hose 9A9 Disconnected . ? P2172 \- High Airflow/Vacuum Leak Detected \(Instantaneous Accumulation\). ? P0441 \- EVAP Purge System Performance. ? P0607 \- ECU Internal Performance. ? P0506 \- Idle Speed Performance Lower Than Expected. The customer may also comment on the following: ? ?Performance Limited Service Fuel System? message in the Instrument Panel Cluster \(IPC\). This bulletin involves reprogramming the PCM with the latest available software.
- [S2325000006](/bulletins/10241022.md), 2023-08-21, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaint may include a MIL\-on or check engine lamp on condition.
- [S1808000152](/bulletins/10234438.md), 2023-04-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). CEL \(Check Engine Lamp\) Illuminates, Recent PCM Replace or Flash Update Performed, Diagnostic Trouble Codes \(DTCs\) P057B Brake Pedal Position Sensor Circuit Performance, P1572 Brake Pedal Stuck, C0042\-54 Brake Pedal Missing Calibration
- [S2207000002](/bulletins/10229470.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLER/RADIATOR:HOSES AND FITTINGS; UNKNOWN OR OTHER. Coolant leak
- [1805322](/bulletins/10229149.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more of the following \(DTCs\) have been set: P2172 \- High Airflow/Vacuum Leak Detected \(Instantaneous Accumulation\). P0441 \- EVAP Purge System Performance. P0607 \- ECU Internal Performance. P0506 \- Idle Speed Performance Lower Than Expected
- [1801220](/bulletins/10223586.md), 2022-10-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one of the followingDTCs have been set: P0607 \- ECU Internal Performance. P0506 \- Idle Speed Performance Lower Than Expected.
- [1801320](/bulletins/10223585.md), 2022-10-17, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find one or more ofthe following DTCs have been set: P0607 \- ECU Internal Performance. P0506 \- Idle Speed Performance Lower Than Expected
- [S2018000009](/bulletins/10221827.md), 2022-09-26, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; EXTERIOR LIGHTING. Malfunction Indicator Lamp \(MIL\) Illuminated. Diagnostic Trouble Codes \(DTCs\) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response.

JSON: [/v1/bulletins/10223597](/v1/bulletins/10223597)

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