Code 21: Ignition Signal Circuit

Fig 1: Code 21: Ignition Signal Ckt. Circuit Diagram

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Fig 2: Code 21: Ignition Signal Ckt. ECU & Harness Location

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Fig 3: Code 21: Ignition Signal Ckt. Flow Chart (1 of 3)

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Fig 4: Code 21: Ignition Signal Ckt. Flow Chart (2 of 3)

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Fig 5: Code 21: Ignition Signal Ckt. Flow Chart (3 of 3)

Courtesy of NISSAN MOTOR CO., U.S.A.