What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
B22A9-64ECU Internal Performance-Signal Plausibility FailureB22A9-17ECU Internal Performance-Circuit Voltage Above ThresholdB22A9-16ECU Internal Performance-Circuit Voltage Below ThresholdB22A9-19ECU Internal Performance-OvercurrentView all · Manufacturer wording →
Manufacturer communications
25Original wording in English
JEEP
Reported code forms B22A9-16 B22A9-17 B22A9-19 B22A9-42 B22A9-64 B22A9-87 B22A9-92
Flash: Integrated Dual Charging Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician may find one or more of the following…
JEEP
Reported code forms B22A9-16 B22A9-17 B22A9-19 B22A9-42 B22A9-64 B22A9-87
Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
JEEP
Reported code forms B22A9-16 B22A9-17 B22A9-19 B22A9-42 B22A9-64 B22A9-87
Flash: Integrated Dual Charge Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
JEEP
Reported code forms B22A9-16 B22A9-17 B22A9-19 B22A9-42 B22A9-64 B22A9-87
Flash: Integrated Dual Charging Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble…
JEEP
Reported code forms B22A9-96
Global Telematics Box Module (TBM) Firmware Over The Air (FOTA) Update Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic…
JEEP
Reported code forms B22A9-96
Flash: Global Telematics Box Module (TBM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes…
Check vehicle applicability
5A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Jeep | GRAND CHEROKEE 4XE | 2026 |
| Jeep | GRAND CHEROKEE 4XE | 2025 |
| Jeep | GRAND CHEROKEE 4XE | 2024 |
| Jeep | GRAND CHEROKEE 4XE | 2023 |
| Jeep | GRAND CHEROKEE 4XE | 2022 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.