B1515
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Malfunction
Signal Ground. Missing
Fault symptoms
Malfunction
Condition
No ground connection at pin 37.
Check wiring harness
Touch and move the wiring harness at several points and in different directions to reveal intermittent breaks and short-circuits in the harness. Monitor the multimeter, test lamp or diagnostic instrument during the test.