Drive Motor Battery Odor

Drive Motor Battery Odor

Diagnostic Fault Information

Perform a visual inspection of all hoses and manifolds in the venting system for kinks, restrictions and poor connections. This could cause gases to back up and create an odor.

Check all electrical components for signs of overheating this may cause an electrical odor. Check the exhaust duct for proper operation this could cause the hybrid drive motor battery cooling air to be vented to the passenger compartment.

Circuit/System Description

The hybrid drive motor battery has two venting systems. One for battery air cooling and one for venting of the hybrid batteries themselves. The exhaust air from hybrid drive motor battery cooling is routed through a duct and into the floor panel of the vehicle.

The hybrid batteries vent system connects all the battery vents to a rubber manifold that exits the hybrid drive motor battery through a single hose and is vented through the floor panel of the vehicle.

Reference Information

Special Tools

EL-48900 - HEV Safety Kit

Circuit/System Verification

Ignition ON, command the hybrid drive motor battery fan ON with a scan tool. No odor from the hybrid drive motor battery should be present.

Circuit/System Testing

1. Ignition OFF, inspect the hybrid drive motor battery air inlet and outlet ducts for debris, or for a restriction.

• If debris or a restriction is found, repair as necessary.

2. Inspect that the drive motor generator battery exhaust duct and the battery vent tube assembly are properly installed.

Repair Instructions

Perform a visual inspection of all hoses and manifolds in the venting system for kinks, restrictions, and poor connections. Ensure that the drive motor generator battery exhaust duct and the battery vent tube assembly are properly installed.