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Circuit Testing: Notes

CIRCUIT TESTS CHART

TEST 1  INDICATOR LIGHT CIRCUIT
TEST 2  STARTER RELAY CIRCUIT
TEST 3  HORN RELAY CIRCUIT
TEST 4  THEFT DETERRENT HORN CIRCUIT
TEST 5  HEADLIGHT CONTROL RELAY CIRCUIT
TEST 6  TAILLIGHT CONTROL RELAY CIRCUIT
TEST 7  IGNITION SWITCH CIRCUIT
TEST 8  LUGGAGE COMPARTMENT DOOR KEY-OPERATED SWITCH CIRCUIT
TEST 9  LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT
TEST 10  DOOR OPEN DETECTION SWITCH CIRCUIT
TEST 11  DOOR UNLOCK DETECTION SWITCH CIRCUIT
TEST 12  ENGINE HOOD COURTESY SWITCH CIRCUIT
NOTE: Some of the following test procedures contain an illustration that can help you identify connector terminals at the theft deterrent ECU. For more information on identifying terminals, see THEFT DETERRENT ECU CONNECTOR TERMINAL IDENTIFICATION. After performing test procedures, if theft deterrent system still does not operate, see CHECKING CIRCUIT VOLTAGE & RESISTANCE.
CAUTION: To prevent damage, backprobe the connector terminals at the theft deterrent ECU.