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Circuit Opening Relay

  1. With relay connected, ensure battery voltage is present at relay terminal Black/White wire. For locations of circuit opening relay, see CIRCUIT OPENING RELAY LOCATION  table.
  2. If voltages are okay, remove relay from vehicle. Using a 12-volt battery source, connect 12 volts to relay terminals "A" and "B". Ensure continuity is present across terminals "C" and "D". If continuity is not as specified, replace circuit opening relay.
CIRCUIT OPENING RELAY LOCATION

Application Location
929 In Engine Compartment Relay Box, Near Battery
CIRCUIT OPENING RELAY CIRCUIT VOLTAGE

Terminal Ignition ON: Volts Ignition START: Volts Idle Volts
Fp 0 12 12
Fc 12 0 0
B 12 12 12
STA 0 12 0
E1 0 0 0