Engine Control Module (ECM)

On V8 engine vehicles the SLABS ECU outputs a rough road signal to the ECM from SLABS ECU pin C0504-4 on an RG wire to ECM pin C0637-34. The rough road signal inhibits misfire detection on NAS vehicles. The SLABS ECU receives engine data from the ECM from ECM pin C0636-29 on an SP wire to SLABS ECU pin C0504-10.

On Td5 (diesel) engine vehicles the SLABS ECU receives engine data from ECM pin C0658-32 on an SP wire to SLABS ECU pin C0504-10.