Fix: Micropod 2 Clone – J1850 VPW (PCI-bus)

PCB version (reads next to OBD2 connector): POD2103 REV2

Symptom: no communication over J1850 VPW bus (PCI-bus), affecting engine diagnostics, etc.

Explanation: PCB design/manufacturing error, certain chip is powered off due to its ground pin floating.

Verify: copper plane near the chip marked "27TI MAP" or "55TI MAP" not touching its ground pin.

Proposed fix: extend chip’s ground pin next to the large ceramic capacitor’s ground side using a piece of insulated wire. I recommend 0.4 mm diameter winding wire (copper).

1 thought on “Fix: Micropod 2 Clone – J1850 VPW (PCI-bus)

Leave a comment