Page 215 of 436
TEST TC-58AREPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR PLAUSIBILITY
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST USING THE DRB,
TC-58A. ERASE CODES.
START THE ENGINE.
VARY THE ENGINE MONITOR THE DRB DOES THE DRB YES CONTINUE TEST
SPEED FROM IDLE TO DISPLAY. DISPLAY THIS CODE? TC-58A ON THE
3500 RPM SEVERALNEXT PAGE.
TIMES.
NO
AT THIS TIME, THE USING THE SCHEMATIC
CONDITION REQUIRED AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS THE WIRING AND FOUND? NECESSARY.*
NOT PRESENT. CONNECTORS.
FIG.1 FIG.2
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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Page 217 of 436

TEST TC-58ACONTINUED - REPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TURN IGNITION OFF.
TEST TC-58A DISCONNECT THE
CONTINUED FROM NEEDLE MOVEMENT
PREVIOUS PAGE. SENSOR HARNESS
CONNECTOR.**
INSPECT THE NEEDLE THE SENSOR HARNESS IS THERE ANY
MOVEMENT SENSOR AND ENGINE DAMAGE OR YES REPAIR AS
CONNECTOR HARNESS. CORROSION AT NECESSARY.*
TERMINALS AT EITHER HARNESS
BOTH.... FIG. 1 AND 2 CONNECTOR?
NO
CHECK THE WIRING THIS INTERFERENCE
HARNESS FOR COULD BE CAUSED BY IS THE WIRING YES REPAIR AS
MIS-ROUTING THAT LARGE CURRENT HARNESS NECESSARY.*
COULD INDUCE CARRYING WIRES OR MIS-ROUTED?
INTERFERENCE. THE ALTERNATOR.
NO
DISCONNECT THE ECM THE NEEDLE REPAIR THE OPEN IN
HARNESS MOVEMENT SENSOR IS THE RESISTANCE YES THE NEEDLE
CONNECTORS.** USING SIGNAL CIRCUIT. ABOVE 5.0 OHMS? MOVEMENT SENSOR
AN OHMMETER, MEASURESIGNAL CIRCUIT.*
THE RESISTANCE OF... FIG.3
NO
REPLACE THE NEEDLE START AND OPERATE
MOVEMENT SENSOR. THE ENGINE FROM DOES THIS CODE YES REPLACE THE ENGINE
RECONNECT ALL IDLE TO 3500 RPM RESET? CONTROL MODULE.*
CONNECTORS. KEY ON WHILE MONITORING
ERASE CODES. THE DRB.
NO
TEST COMPLETE.*
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Page 219 of 436
TEST TC-59AREPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR STATIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST USING THE DRB,
TC-59A. ERASE CODES.
START THE ENGINE.
VARY THE ENGINE MONITOR THE DRB DOES THE DRB YES CONTINUE TEST
SPEED FROM IDLE TO DISPLAY. DISPLAY THIS CODE? TC-59A ON THE
3500 RPM SEVERALNEXT PAGE.
TIMES.
NO
AT THIS TIME, THE USING THE SCHEMATIC
CONDITION REQUIRED AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS THE WIRING AND FOUND? NECESSARY.*
NOT PRESENT. CONNECTORS.
FIG.1 FIG.2
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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Page 221 of 436

TEST TC-59ACONTINUED - REPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR STATIC
PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-59A TURN IGNITION OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS NEEDLE MOVEMENT
PAGE. SENSOR HARNESS
CONNECTOR.*
INSPECT THE NEDLE THE SENSOR HARNESS
MOVEMENT SENSOR AND THE ENGINE IS THERE DAMAGE OR YES REPAIR AS
CONNECTOR AT HARNESS. CORROSION AT NECESSARY.*
BOTH... EITHER HARNESS?
FIG.1 AND 2.
NO
CHECK THE WIRING THIS INTERFERENCE
HARNESS FOR COULD BE CAUSED BY IS THE WIRING YES REAPIR AS
MIS-ROUTING THAT LARGE CURRENT HARNESS NECESSARY.*
COULD CAUSE CARRYING WIRES OR MIS-ROUTED?
INTERFERNCE. THE ALTERNATOR.
NO
USING AN OHMMETER, REPAIR THE OPEN IN
DISCONNECT THE ECM MEASURE THE NEEDLE IS THE RESISTANCE YES THE NEEDLE
HARNESS MOVEMENT SENSOR ABOVE 5.0 OHMS? MOVEMENT SENSOR
CONNECTORS.** SIGNAL CIRCUIT. SIGNAL CIRCUIT.*
FIG.3
NO
REPLACE THE NEEDLE START AND OPERATE
MOVEMENT SENSOR. THE ENGINE FROM DOES THE CODE YES REPLACE THE ENGINE
RECONNECT ALL IDLE TO 3500 RPM RESET? CONTROL MODULE.*
CONNECTORS. KEY WHILE MONITORING
ON. ERASE CODES. THE DRB.
NO
TEST COMPLETE.*
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Page 223 of 436
TEST TC-62AREPAIRING - INTAKE AIR TEMPERATURE SENSOR SIGNAL HIGH EXCEEDED
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
DOES THE DRB
START TEST USING THE DRB, DISPLAY "INTAKE YES CONTINUE TEST
TC-62A. ERASE CODES. AIR TEMPERATURE TC-62A ON THE
SENSOR HIGH NEXT PAGE.
EXCEEDED"?
NO
USE THE SCHEMATIC AS DOES THE DRB REPAIR THE HARNESS
A GUIDE AND WIGGLE MONITOR THE DRB DISPLAY "INTAKE YES OR CONNECTOR THAT
THE INTAKE AIR DISPLAY. AIR TEMPERATURE CAUSED THE CODE TO
TEMPERATURE SENSOR SENSOR HIGH SET.*
CONNECTOR & HARNESS. EXCEEDED"?
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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Page 227 of 436
TEST TC-63AREPAIRING - INTAKE AIR TEMPERATURE SENSOR SIGNAL LOW EXCEEDED
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
DOES THE DRB
START TEST WITH THE DRB, DISPLAY "INTAKE YES CONTINUE TEST
TC-63A. ERASE CODES. AIR TEMPERATURE TC-63A ON THE
SENSOR LOW NEXT PAGE.
EXCEEDED"?
NO
USING THE SCHEMATIC, DOES THE DRB REPAIR THE HARNESS
WIGGLE THE INTAKE MONITOR THE DRB DISPLAY "INTAKE YES OR CONNECTOR THAT
AIR TEMP SENSOR DISPLAY. AIR TEMPERATURE CAUSED THE CODE TO
CONNECTOR & HARNESS. SENSOR LOW SET.*
FIG.1 EXCEEDED"?
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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Page 231 of 436

TEST TC-72AREPAIRING - NEEDLE MOVEMENT SENSOR SRC HIGH EXCEEDED
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
WITH THE DRB ERASE TURN IGNITION ON AND
START TEST CODES. TURN READ CODES. DOES THE YES CONTINUE TEST
TC-72A. IGNITION OFF FOR DRB DISPLAY "NEEDLE TC-72A ON THE
10 SECONDS. MOVEMENT SENSOR SRC NEXT PAGE.
HIGH EXCEEDED"?
NO
USING THE SCHEMATIC DOES THE DRB REPAIR THE HARNESS
AS A GUIDE, WIGGLE MONITOR THE DRB DISPLAY "NEEDLE YES OR CONNECTOR THAT
THE SENSOR CONNECTOR DISPLAY. MOVEMENT SENSOR CAUSED THE CODE TO
& HARNESS. SRC HIGH SET.*
FIG.1 EXCEEDED"?
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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Page 235 of 436

TEST TC-73AREPAIRING - NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
WITH THE DRB, TURN IGNITION ON AND
START TEST ERASE CODES. TURN READ CODES. DOES THE YES CONTINUE TEST
TC-73A. IGNITION OFF FOR DRB DISPLAY " NEEDLE TC-73A ON THE
10 SECONDS. MOVEMENT SENSOR SRC NEXT PAGE.
LOW EXCEEDED"?
NO
USING THE SCHEMATIC, DOES THE DRB REPAIR THE HARNESS
WIGGLE THE NEEDLE MONITOR THE DRB DISPLAY "NEEDLE YES OR CONNECTOR THAT
MOVEMENT SENSOR DISPLAY. MOVEMENT SENSOR CAUSED THE CODE TO
CONNECTOR & HARNESS. SRC LOW EXCEEDED"? SET.*
FIG.1
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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