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Home›Repair guides›Caterpillar›Test Step 1. Check for Connector Damage

Caterpillar — Test Step 1. Check for Connector Damage

Testing & diagnosis · Engine sensor connectors and wiring

From a Caterpillar service manual covering: 3500B Engine, PM3516, PM3516 Power Module. Check it applies to your exact model before use.

Applies to: Caterpillar 3500B engine

Procedure

  1. Turn the circuit breaker for the battery to the OFF position.
  2. Turn the ECS to the OFF position.
  3. Check connectors and wiring for damage, corrosion, abrasion and incorrect attachment.

Source: Caterpillar service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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