P0BBB Possible Causes

• Defective hybrid/electric vehicle battery
• Faulty hybrid/electric vehicle battery interface control module

What Does It Mean?

How to Fix P0BBB Code

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BBB Possible Symptoms

Check Engine Light illuminated (or Service Engine Soon warning light)

P0BBB Meaning

The hybrid/electric vehicle battery contains 288 cells. Groups of three cells are welded together in parallel. There are a total of 96 cell groups in the hybrid/EV battery pack. These cell groups are electrically connected in series. Each individual cell group is rated at 3.7 V, for a nominal system voltage of 355 V DC. The battery cells are also grouped into three sections. The first 90 cells/30 cell groups make up the first battery section. This section is adjacent to the hood and contains batteries 67 to 96. Battery section two is located behind section one. It consists of 72 cells/24 cell groups and contains batteries 43 to 66. The battery cross-section is section number three, it consists of the remaining 126 cells/42 cell groups and contains batteries 1 to 42. The three battery sections are individually serviceable components.

The battery energy control module monitors the voltage of the 96 battery cell groups via the four hybrid/EV battery interface control modules. Voltage sensing circuits are attached to each individual cell group, and these sensing circuits terminate at a connector located on the top surface of the battery section. A serviceable auxiliary battery wiring harness connects this connector to a hybrid/EV battery interface control module, also located on the top surface of the battery section. The hybrid/EV battery interface control module encodes the voltage reading and transmits it to the battery energy control module via the battery control harness. There is one hybrid/EV battery interface control module located on battery sections one and two, and two hybrid/EV battery interface control modules associated with battery section three. The hybrid/EV battery interface control module, battery energy control module wiring harness, auxiliary battery wiring harness, and battery energy control module are all considered serviceable components.

The battery energy control module will determine when a fault condition is present. System diagnostics and status are communicated from the battery energy control module to the hybrid/EV powertrain control module 2 via serial data. The hybrid/EV powertrain control module 2 is the host controller for diagnostic trouble code information.

P0BBC Possible Causes

• Faulty intelligent battery unit
• Defective HV battery assembly

What Does It Mean?

How to Fix P0BBC Code

Check the “possible causes” listed above. Visually inspect the wiring harness and associated connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BBC Possible Symptoms

Engine light on (or service engine soon warning light)

P0BBC Meaning

The HV battery uses nickel-metal hydride batteries and does not require external charging. The power management control ECU maintains the HV battery’s SOC (state of charge) at a constant level during driving. The HV battery consists of 28 modules, with each module containing eight 1.2V cells connected in series. The intelligent battery unit monitors the battery block voltage at 14 locations. Each battery block consists of 2 modules in an assembly. The intelligent battery unit, which monitors battery block voltages, determines that a malfunction has occurred if the voltage difference between battery blocks exceeds the standard. When the malfunction detection condition is met, the power management control ECU (HV CPU) illuminates the malfunction indicator light (MIL) and sets a diagnostic trouble code (DTC).

P0BBD Possible Causes

• Faulty drive motor battery assembly
• Faulty drive motor generator battery
• Faulty drive motor generator battery control module
• Drive motor battery assembly harness is open or shorted
• Poor electrical connection in drive motor battery assembly circuit

What Does It Mean?

How to Fix Code P0BBD

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BBD Possible Symptoms

Engine light on (or service engine soon warning light)

P0BBD Meaning

The drive motor generator battery control module is also called the battery energy control module (BECM). The BECM will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status are communicated from the BECM to the hybrid powertrain control module (HPCM) via the hybrid LAN communication circuit. The HPCM is the host controller for diagnostic trouble code (DTC) information.

The hybrid battery assembly consists of 40 individual batteries. Each battery is rated at 7.2 volts. A pair of batteries is rated at 14.4 volts. The batteries are connected together in a series circuit. The BECM monitors the hybrid battery voltage across two batteries for a total of 20 locations throughout the battery assembly. The BECM monitors and compares these 20 voltage measurements; if the BECM detects a voltage difference greater than a calibrated value across two consecutive hybrid battery voltage measurements, this DTC will set.

P0BBE Possible Causes

• Faulty hybrid battery
• Hybrid battery harness is open or shorted
• Poor electrical connection in hybrid battery circuit

What Does It Mean?

How to Fix Code P0BBE

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BBE Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BBE Meaning

The engine control module (ECM) monitors the hybrid battery. The ECM sets the OBDII code when the engine hybrid battery pack does not meet factory specifications.

P0BBF Possible Causes

• Faulty hybrid battery
• Hybrid battery harness is open or shorted
• Poor electrical connection in hybrid battery circuit

What Does It Mean?

How to Fix Code P0BBF

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BBF Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BBF Meaning

The engine control module (ECM) monitors the hybrid battery. The ECM sets the OBDII code when the engine hybrid battery pack does not meet factory specifications.

P0BC0 Possible Causes

• Faulty hybrid battery pack cooling fan
• Hybrid battery cooling fan circuit open or shorted
• Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BC0

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BC0 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BC0 Meaning

The engine control module (ECM) monitors the hybrid battery. The ECM sets the OBDII code when the hybrid battery pack does not meet factory specifications.

P0BC1 Possible Causes

• Faulty hybrid battery pack cooling fan
• Hybrid battery cooling fan circuit open or shorted
• Poor electrical connection in hybrid battery pack cooling fan circuit

What Does It Mean?

How to Fix Code P0BC1

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BC1 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BC1 Meaning

The engine control module (ECM) monitors the hybrid battery. The ECM sets the OBDII code when the hybrid battery pack does not meet factory specifications.

P0BC2 Possible Causes

• Faulty hybrid battery temperature sensor
• Hybrid battery temperature sensor circuit open or shorted
• Poor electrical connection in hybrid battery temperature sensor circuit

What Does It Mean?

How to Fix Code P0BC2

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BC2 Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P0BC2 Meaning

The engine control module (ECM) monitors hybrid battery temperature sensor “E”. The ECM sets the OBDII code when hybrid battery temperature sensor “E” does not meet factory specifications.

P0BC3 Possible Causes

• Faulty hybrid battery temperature sensor
• Hybrid battery temperature sensor circuit open or shorted
• Poor electrical connection in hybrid battery temperature sensor circuit

What Does It Mean?

How to Fix Code P0BC3

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BC3 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BC3 Meaning

The engine control module (ECM) monitors the hybrid battery temperature sensor “E”. The ECM sets the OBDII code when the hybrid battery temperature sensor “E” does not meet factory specifications.

P0BC4 Possible Causes

• Faulty hybrid battery temperature sensor
• Hybrid battery temperature sensor circuit open or shorted
• Poor electrical connection in hybrid battery temperature sensor circuit

What Does It Mean?

How to Fix Code P0BC4

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P0BC4 Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P0BC4 Meaning

The engine control module (ECM) monitors the hybrid battery temperature sensor “E”. The ECM sets the OBDII code when the hybrid battery temperature sensor “E” does not meet factory specifications.