B12: Check Circuit Continuity
With BT009 disconnected and relay 1 removed, measure the resistance between BT009/004 and relay socket pin 5
- Is the resistance < 0.5 ohms?
Yes
GO to B13 B13: Check Harness Short to Ground
No
Inspect harness/connector BT009, fuse holder F15 and BT012/002 for corrosion, damage, bent or pushed back pins. Repair as required and test the system for normal operation.