2.2/2.5L EFI Diagnosic Test Procedures

TEST 1 - STEP A - CHECKING SPEED CONTROL SYSTEM FOR FAULT CODES




TEST 1 - STEP B - CHECKING SPEED CONTROL SWITCH INPUTS TO THE LOGIC MODULE




TEST 2 STEP A CHECKING FOR FAULT CODE 34, SPEED CODE SERVO
(VACUUM SOLENOID)





TEST 2 STEP B CHECKING FOR FAULT CODE 34, SPEED CONTROL (VENT SOLENOID)





TEST 2 - STEP G - CHECKING THE POWER SUPPLY TO THE SPEED CONTROL SERVO




TEST 2 STEP H CHECKING SPEED CONTROL POWER SUPPLY THROUGH
THE BRAKE SWITCH




TEST 2 - STEP I - CHECKING SPEED CONTROL POWER SUPPLY TO THE
BRAKE SWITCH




TEST 3 STEP A CHECKING THE SPEED CONTROL SERVO GROUND CIRCUIT




TEST 3 - STEP B - CHECKING BRAKE SWITCH INPUT TO THE LOGIC MODULE




TEST 3 STEP C CHECKING BRAKE SWITCH INPUT CIRCUIT TO THE LOGIC MODULE




TEST 3 - STEP D - CHECKING THE SPEED CONTROL SERVO OPERATION




TEST 4 STEP A CHECKING SPEED CONTROL SYSTEM ON/OFF FUNCTION IN
THE LOGIC MODULE




TEST 4 - STEP B - CHECKING THE SPEED CONTROL SYSTEM POWER SUPPLY CIRCUIT




TEST 4 STEP C CHECKING THE SPEED CONTROL SYSTEM POWER SUPPLY CIRCUIT




TEST 5 - STEP A - CHECKING SPEED CONTROL SYSTEM SET FUNCTION IN
THE LOGIC MODULE




TEST 5 STEP B CHECKING THE SPEED CONTROL SYSTEM SET CIRCUIT




TEST 6 - STEP A - CHECKING SPEED CONTROL SYSTEM RESUME FUNCTION IN
THE LOGIC MODULE




TEST 6 STEP B CHECKING THE SPEED CONTROL SYSTEM RESUME CIRCUIT