Checking wiring and connectors
Check the knock sensor (KS) connector. Check for contact resistance and oxidation. Check for loose connections.
Check the signal cable between knock sensor (KS) terminal #1 and control module terminal #A46 (#A46). Check the ground lead between knock sensor (KS) terminal #2 and control module terminal #A64 (#B4). Check for an intermittent open-circuit. Check for an intermittent short-circuit to ground.
Check that the knock sensor (KS) is tightened to the correct torque.
Other information
- To connect the breakout box / access the control module, see Connecting the breakout box
- To access or replace the knock sensor (KS):
- For B5xx4T, see Replacing knock sensors (KS)
- For B6xx4x, see Knock sensor (KS), replacing .
- For information about signals on 5 cylinder engines, see Signal specification
- For information about signals for 6 cylinder engines:
- For 6 cylinder engines -2001, see Signal specification
- For 6 cylinder engines 2002-, see Signal specification
- For 6 cylinder engines -2004, see Signal specification
- For 6 cylinder engines 2005-, see Signal specification .
- See Contents .
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Refer to Information