Test Point 38

TEST POINT 38
Signal Converter Faulty

Fault Code 39

Fault Effect: No engine start possible

Procedure

1. Check the power supply for the signal converter:

Disconnect the plug on the signal converter.

Voltmeter at plug housing pin 4 (negative) and pin 5 (positive).

Ignition key inserted.

Display: Battery voltage

2. Check the control lead for the signal converter (pin 6) to the alarm system control module plug I, pin 4 for open circuit, short to B+ and short to ground.

3. Check the control lead for the signal converter (pin 8) to the alarm system control module plug I, pin 3 for open circuit, short to B+ and short to ground.