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Mitsubishi
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2002
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Montero XLS
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Repair and Diagnosis
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Transmission
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Automatic Trans
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Diagnosis - R4A51, V4A51 & V5A51
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Diagnostic Tests
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DTC 54 (P1751): A/T Control Relay Circuit Open/Shorted To Ground
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Trouble Shooting Hints
Trouble Shooting Hints
The most likely causes for this DTC to be set are:
Faulty A/T control relay.
Damaged wire harness or connector.
Faulty PCM.