Checking wiring and components

Check that the resistance in the system relay (2/14) between terminals 1 and 2 is approximately 75 Ω at +20 °C.

Replace the system relay if necessary.

Fig 1: Identifying System Relay Control Connector Terminals

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Fig 2: Identifying Ohmmeter

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Fig 3: Identifying Integrated Relay/Fusebox In Engine Compartment

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  Refer to Checking wiring and components 

Check the signal cable between engine control module (ECM) terminal 10 and system relay base terminal 1 for a short-circuit to supply voltage. Remedy according to Short-circuit to supply voltage. Permanent faults .

Other information 

• To connect the breakout box, see Connecting the breakout box. EMS 2000 .

Fig 1: Identifying EMS2000

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Fig 2: Identifying Voltage Display

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Fig 3: Identifying System Relay Base Connector Terminals

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  Refer to Verification