Starting System Test: Notes

2011 Volkswagen Tiguan SEL 4MotionSECTION Notes
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The battery, starting, and charging systems operate in conjunction with one another, and must be tested as a complete system. For correct starting/charging system operation, all of the components involved in these three systems must perform within specifications.

Starting System Diagnosis
CONDITION POSSIBLE CAUSE CORRECTION
Starter fails to operate. 1. Battery discharged or faulty Charge or replace battery, if required. Refer to BATTERY .
2. Starting circuit wiring faulty 2. Refer to appropriate Wiring Diagram. Test and repair starter feed and/or control circuits, if required.
3. Starter relay faulty 3. The starter relay is located within the totally integrated power module. Refer to NO CRANK CONDITION .
4. Ignition switch faulty 4. Replace ignition switch if required. Refer to REMOVAL AND INSTALLATION .
6. Park/Neutral position switch faulty or misadjusted 6. Replace park/neutral position switch if required.
7. Starter solenoid faulty 7. Replace starter motor assembly if required. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .
8. Starter motor faulty. 8. If all other starting system components and circuits test OK, replace starter motor. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .
Starter engages, fails to turn engine. 1. Battery discharged or faulty. 1. Charge or replace battery if required. Refer to BATTERY .
2. Starting circuit wiring faulty. 2. Refer to appropriate Wiring Diagram. Test and repair starter feed and/or control circuits, if required.
3. Starter motor faulty. 3. If all other starting system components and circuits test OK, replace the starter motor assembly. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .
4. Engine seized. 4. Refer to ENGINE MECHANICAL, FUEL INJECTION AND IGNITION .
Starter engages, spins out before engine starts. 1. Starter ring gear faulty. 1. Remove starter motor to inspect starter ring gear. Replace starter ring gear if required. Refer to FLEXPLATE .
2. Starter motor faulty. 2. If all other starting system components and circuits test OK, replace starter motor assembly. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .
Starter does not disengage. 1. Starter motor improperly installed. 1. Tighten starter mounting hardware to correct torque specifications. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .
2. Starter relay faulty. 2. The starter relay is located within the totally integrated power module. Refer to NO CRANK CONDITION
3. Ignition switch faulty. 3. Replace ignition switch if required. Refer to REMOVAL AND INSTALLATION .
4. Starter motor faulty. 4. If all other starting system components and circuits test OK, replace starter motor. Refer to STARTER (CGUA ENGINE) , STARTER (CGVA ENGINE) or STARTER (CJRA ENGINE) .

Testing

Cold Cranking Test

NOTE:

For complete starter wiring circuit diagrams, refer to appropriate Wiring Diagram. The battery must be fully-charged and load-tested before proceeding. Refer to BATTERY CHARGING .

-- Connect volt-ampere tester to battery terminals. See instructions provided by manufacturer of volt-ampere tester being used.

-- Fully engage parking brake.

-- Place gearshift selector lever in Park position.

-- Verify that all lamps and accessories are turned off.

-- To prevent the engine from starting, remove either the ignition run fuse, or the fuel pump control fuse.

WARNING:

Attempt to start engine a few times before proceeding with following step.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.