Checking components and connections
Check the signal cable from engine control module (ECM) terminal #B7 (#B17) to leak diagnostic pump terminal #1. Check for a short-circuit to supply voltage.
Check the signal cable from engine control module (ECM) terminal #B40 (#B50) to leak diagnostic pump terminal #3. Check for a short-circuit to the 12V supply voltage.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting the breakout box
- For information about signals, see Signal specification
- To access or replace the leak diagnostic pump, see Leak diagnostic unit, replacing
- To fault-trace the wiring and terminals, see Contents .
- Continue
Refer to Information