Checking Components And Wiring

Check the engine speed (RPM) sensor connector. Check for contact resistance and oxidation.

Check the resistance of the engine speed (RPM) sensor between terminals #1 and #2.

Check the signal cable between engine speed (RPM) sensor terminal #1 and engine control module (ECM) terminal #A77 (#B17). Check for an open-circuit. Check for a short-circuit to supply voltage. Check for a short-circuit to ground.

Check the power cable between engine speed (RPM) sensor terminal #2 and engine control module (ECM) terminal #A53 (#A53). Check for an open-circuit. Check for a short-circuit to supply voltage. Check for a short-circuit to ground.

Remedy as necessary.

HINT: The diagnostic trouble code (DTC) can be caused by damage in the flywheel / carrier plate. Look for damage to the flywheel / carrier plate. 

Other information 

• see CONNECTING THE BREAKOUT BOX
• see SIGNAL SPECIFICATION
• see COMPONENT SPECIFICATIONS
• see CRANKSHAFT POSITION SENSOR (CKP)
• see CONTENTS

Fig 1: Identifying 2-Bit Connector

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA (Volvo Scan Tool)

Courtesy of VOLVO CARS CORPORATION

Fig 3: Crankshaft Position Sensor

Courtesy of VOLVO CARS CORPORATION

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  Refer to VERIFICATION