Diagnostic Procedures

1. Checking The Engine Speed Sensor's Ground Connection

Unplug the connector.
Speed sensor, input shaft, gearbox (532)

Go to step 2

2. Checking The Engine Speed Sensor's Ground Connection

Part 1 Of 2:

Part 2 Of 2:

Connect test lamp 86 11857 to B+ and pin 2 of the female connector.





The test lamp should light.

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and indifferent directions to reveal intermittent breaks and short circuits in the wiring harness, Observe the multimiter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO
Go to step 3

YES
Go to step 4

3. Rectifying The Lead

Repair or replace the lead between pin 45 of the control module and pin 2 of the sensor

When repair is complete;
Go to step 8

4. Checking Control Module Input





Turn the ignition switch to the OFF position.

Go to step 5

5. Checking Control Module Input





Take a resistance reading between
Pin 1 Speed sensor, input shaft, gearbox
Pin 2 Speed sensor, input shaft, gearbox

The reading should be 2 Ohm - 2.4 Ohm

Checking the wiring harness.
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO
Go to step 6

YES
Go to step 7

6. Rectifying The Lead

Repair or replace the lead between pin 44 of the control module and pin 1 of the sensor

When repair is complete;
Go to step 8

7. Changing Components





Change Speed sensor, input shaft, gearbox.

When repair is complete
Go to step 8

8. Final Check





Clear the diagnostic trouble codes in all systems.

Carry out a drive cycle
Drive the car at varying engine loads and engine rpm for five minutes.

Evaluate the drive cycle.





Check that the diagnostic trouble code has not recurred

Is the function correct?

NO
Go to step 10

YES
Go to step 9

9. Final Check

The steps taken to rectify the fault were correct.
The diagnosis is complete

10. Final Check

The diagnosis for this fault code is complete.
Refer to Procedures, Before Changing A Control Module