He turned the key to 'ON'. A faint hum—the fuel pump priming—echoed from the back. He turned it to 'START'. The starter motor barked, the pistons danced, and the 4G15 engine roared into a steady, rhythmic idle. The "city's road map" of wires was finally clear again, and the Wira was ready for another hundred thousand miles.
Proton uses a standard letter-based code for wire identification in its diagrams: Black (usually ground) W: White R: Red L: Light Blue Y: Yellow G: Green proton wira wiring diagram