VOLTAGE/RESISTANCE TESTS

If a concern cannot be found with a visual inspection, it can usually be found with an inspection. It can usually be isolated by making voltage and resistance measurements at the amplifier connectors (Stand-Alone System) or at the EEC-IV connector (Integrated System). The connectors must be unplugged for the resistance checks.

The following tables summarize the circuits and wire color codes used for the speed control system. The proper voltage/resistance readings at the amplifier or EEC-IV connectors are also given. Typical circuit numbers apply to both car and truck applications. Refer to the appropriate Shop Manuals, Section 37-05, or to the Electrical/Vacuum Trouble-Shooting Manuals for the exact circuit number or color code.

Owner caption January 2007 · Photo 1415 of 5000