Code 12 - Rpm Signal DIANOSIS

No signal to ECU within serveral seconds after engine is cranked (TAC).

Trouble Area:

• Ignition coil circuit
• Ignition coil
• Ignition circuit
• Igniter
• ECU

Fig 1: Code 12 - RPM Signal Dianosis Schematic

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Fig 2: Code 12 - RPM Signal Dianosis Flow Chart

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