Checking components and wiring

Check that the resistance in the system relay between terminals 1 and 2 is approximately 75 Ω at +20 °C.

Check the signal cable between engine control module (ECM) terminal 10 and system relay (2/14) base terminal 1 for an intermittent short-circuit to supply voltage and remedy according to Short-circuit to supply voltage, intermittent faults .

Fig 1: Identifying System Relay Control Connector Terminals

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Fig 2: Identifying Ohmmeter

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Fig 3: Identifying System Relay Base Connector Terminals

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