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Suzuki Samurai CMP Sensor (Distributor) Wiring Diagram - ECM Pin B3 Vout

Factory wiring diagram showing the camshaft position sensor and ECM coupler wiring with the B3 connector terminal pinout view.

AI caption · Photo 12 of 86

This document is a wiring diagram for a camshaft position (CMP) sensor circuit, showing how the sensor (located in the distributor) connects to the ECM. The diagram depicts the ECM as a large box with terminal B3 carrying the "Vout" signal line to the CMP sensor through a coupler (connector). A Bl/B (blue/black) wire supplies battery-positive (B+) power to the sensor circuit from the main relay. ECM terminals B14, B1, and B2 are shown tied together to a common chassis ground, labeled B (GND). A numbered legend identifies the five callouts: 1. ECM, 2. ECM coupler, 3. CMP sensor (in distributor), 4. Coupler, and 5. To main relay. A separate inset at the lower right shows the physical pin layout of the ECM coupler with the location of terminal B3 marked. A reader can learn the signal path (Vout on ECM pin B3), the power source (main relay via the Bl/B wire), the ground terminals (B14, B1, B2), and where to probe the ECM connector when diagnosing the CMP/crank sensor circuit. The scan was uploaded to a 1986 Suzuki Samurai gallery as part of a larger factory wiring-diagram set.

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Frequently asked questions

Where is the CMP sensor located according to this diagram?
The legend states the CMP sensor is located in the distributor (item 3).
Which ECM terminal carries the CMP sensor signal?
ECM terminal B3 carries the "Vout" signal line to the CMP sensor.
What powers the CMP sensor circuit?
A Bl/B (blue/black) wire labeled B+ runs to the main relay (item 5), which supplies power to the circuit.
Which ECM terminals are grounded in this circuit?
ECM terminals B14, B1, and B2 are shown joined together and connected to chassis ground, labeled B (GND).
What do the numbered callouts in the diagram mean?
1 = ECM, 2 = ECM coupler, 3 = CMP sensor (in distributor), 4 = Coupler, 5 = To main relay.

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