Trouble Shooting

Before proceeding with specific testing, check the following for proper operation:

• Check courtesy lights for proper operation.
• Check fuses, and replace as necessary.
• Check and ensure grounds are clean and tight.
• Check for broken or partially broken wire inside insulation, which could cause system malfunction, but prove good in a continuity/voltage check with system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring voltage drop with system operational (under load).
• Check for proper installation of aftermarket electronic equipment.