Checking the signal cable

Check the cable between canister purge (CP) valve connector terminal #1 (control module side) and engine control module (ECM) connector terminal #4. Check for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Fig 2: Identifying Canister Purge (CP) Valve Terminals

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Fig 3: Identifying Voltage Display

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Fig 4: Identifying EMS2000

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Refer to Verification