Page 201 of 436
TEST TC-53ACONTINUED - REPAIRING - GLOW RELAY #1 CONTROLLER SHORT CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-53A
CONTINUED FROM TURN IGNITION OFF.
THE PREVIOUS REMOVE THE GLOW
PAGE. PLUG #1 RELAY.**
USING AN OHMMETER, 85 AND 86 IS THE RESISTANCE
MEASURE RESISTANCE 85 AND 87 BELOW 30.0 OHMS YES REPLACE THE GLOW
BETWEEN GLOW PLUG 85 AND 30 FOR ANY OF THE PLUG #1 RELAY.*
#1 RELAY 85 AND 87A MEASUREMENTS?
TERMINALS... FIG.1
NO
DISCONNECT THE ECM REMOVE THE DIESEL
HARNESS POWER RELAY.**
CONNECTORS.**
WITH A JUMPER WIRE, TURN IGNITION ON.
CONNECT DIESEL POWER
RELAY CONN. CAVITIES USE A VOLTMETER IN
30 AND 87 (IN PDC). THE FOLLOWING
FIG.2 STEP.
MEASURE THE GLOW REPAIR GLOW PLUG
PLUG #1 RELAY IS THE VOLTAGE YES #1 RELAY CONTROL
CONTROL CIRCUIT. ABOVE 1.0 VOLT? CIRCUIT FOR SHORT
TO VOLTAGE.*
FIG.3
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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Page 202 of 436
TEST TC-54AREPAIRING - GLOW RELAY #2 CONTROLLER SHORT CIRCUIT
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
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Page 203 of 436
TEST TC-54AREPAIRING - GLOW RELAY #2 CONTROLLER SHORT CIRCUIT
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST WITH THE DRB, IS THE GLOW PLUG NO CONTINUE
TC-54A. ACTUATE GLOW PLUG #2 RELAY CLICKING? TEST-54A ON THE
#2 RELAY. NEXT PAGE.
YES
THE CONDITION TO SET USING THE SCHEMATIC
THE TROUBLE CODE IS AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
NOT PRESENT. THE WIRING AND FOUND? NECESSARY.*
CONNECTORS.
FIG.1 FIG.2
NO
WIGGLE THE WIRING NOTE: THE DRB MUST REPAIR AS
HARNESS FROM THE STILL BE ACTUATING DID THE WIGGLING YES NECESSARY WHERE
GLOW #2 RELAY TO THE GLOW PLUG #2 INTERRUPT THE WIGGLING CAUSED
THE ENGINE CONTROL RELAY. CLICKING? CLICKING TO BE
MODULE.INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
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Page 204 of 436
TEST TC-54ACONTINUED - REPAIRING - GLOW RELAY #2 CONTROLLER SHORT CIRCUIT
FIG.1
FIG.2
FIG.3
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Page 205 of 436
TEST TC-54ACONTINUED - REPAIRING - GLOW RELAY #2 CONTROLLER SHORT CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-54A
CONTINUED FROM TURN IGNITION OFF.
THE PREVIOUS REMOVE THE GLOW
PAGE. PLUG #2 RELAY.**
USING AN OHMMETER, 85 AND 86 IS THE RESISTANCE
MEASURE RESISTANCE 85 AND 87 BELOW 30.0 OHMS YES REPLACE THE GLOW
BETWEEN GLOW PLUG 85 AND 30 FOR ANY OF THE PLUG #2 RELAY.*
#2 RELAY 85 AND 87A MEASUREMENTS?
TERMINALS... FIG.1
NO
DISCONNECT THE ECM REMOVE THE DIESEL
HARNESS POWER RELAY.**
CONNECTORS.**
WITH A JUMPER WIRE, TURN IGNITION ON.
CONNECT DIESEL POWER
RELAY CONN. CAVITIES USE A VOLTMETER IN
30 AND 87 (IN PDC). THE FOLLOWING
FIG.2 STEP.
MEASURE THE GLOW REPAIR GLOW PLUG
PLUG #2 RELAY IS THE VOLTAGE YES #2 RELAY CONTROL
CONTROL CIRCUIT. ABOVE 1.0 VOLT? CIRCUIT FOR SHORT
TO VOLTAGE.*
FIG.3
NO
REPLACE THE ENGINE
CONTROL MODULE.*
T
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B
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C
O
D
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T
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Page 206 of 436
TEST TC-56AREPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR DYNAMIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
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Page 207 of 436
TEST TC-56AREPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR DYNAMIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST USING THE DRB,
TC-56A. 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-56A ON THE
3500 RPM SEVERALNEXT PAGE.
TIMES.
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.1 CONNECTORS. FIG.2
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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C
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D
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Page 208 of 436
TEST TC-56ACONTINUED - REPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR DYNAMIC
PLAUSIBILITY
FIG.1
FIG.2
FIG.3
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