P0DE6: Hybrid/EV Battery Pack Cell Voltage Low

P0DE6 means the battery controller has measured at least one cell of the high-voltage pack below its lower voltage limit. It concerns a real reading, not the sensing lines (P0B3D and similar), and it looks at the weakest cell rather than the charge of the whole pack (P0A7D). Ford pairs it with P0A7D on 2020 Escape and Explorer hybrids drained by long standing or failed starts; a rescue charge needs the lowest cell above 1.45 V and a cell spread under 2.5 V (SSM 49163, later 51460, 52230 and 52773 for 2023-24 models). Stellantis fixes P0DE6 with BPCM software on the 2024-25 Dodge Charger EV and Jeep Wagoneer S, and on the 2026 Cherokee hybrid lengthened its maturing time for cold cranks. A no-start or reduced power is typical.

Symptoms

• Vehicle will not start or switch to ready
• Reduced power, no electric driving
• Malfunction indicator lamp on

Most likely causes

• Pack deeply discharged after long standing or repeated failed starts
• Battery controller software judging too strictly (e.g. cold cranking)
• Single weak cell with high self-discharge or lost capacity
• Cell balancing circuit draining one cell

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. With the connector unplugged, check whether the signal wire is making contact with ground.
3. Make sure the battery cooling air intake is clean
4. Check the 12 V auxiliary battery, which can also trigger warnings
5. Leave any high-voltage measurements to a specialized repair shop

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P0DE6 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• D: Subsystem depends on the code range
• E6: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0DE6?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0DE6?

The most common causes are: pack deeply discharged after long standing or repeated failed starts; battery controller software judging too strictly (e.g. cold cranking); single weak cell with high self-discharge or lost capacity.

Related codes

• P0DE7Hybrid/EV Battery Pack Cell Voltage High
• P0A7DHybrid/EV Battery Pack State of Charge Low
• P0AFAHybrid/EV Battery System Voltage Low
• P0BBDHybrid/EV Battery Pack Voltage Variation Exceeded Limit
• P0DAFHybrid/EV Battery Cell Balancing Circuit A Range/Performance
• P0B3DHybrid/EV Battery Voltage Sense A Circuit Low

Sources

• static.nhtsa.gov: MC 10180367 0001
• static.nhtsa.gov: MC 11006445 0001
• static.nhtsa.gov: MC 11020728 0001
• static.nhtsa.gov: MC 11018047 0001

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.