instrument cluster ISUZU KB P190 2007 Workshop Owner's Manual

6E-174 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Circuit/ System Testing DTC P0500 (except 2WD fitted with Jatco A/T)
StepAction Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Monitor the DTC Information with a scan tool.
Is DTC P0219 also set? —
Go to DTC P0219 Go to Step 3
3 Drive the vehicle while observing the Vehicle
Speed parameter with a scan tool.
Does the scan tool indicate correct vehicle speed? —
Go to Diagnostic
Aids Go to Step 4
4 1. Turn OFF the ignition.
2. Disconnect the vehicle speed sensor (VSS) harness connector.
3. Turn ON the ignition, with the engine OFF.
4. Connect a test lamp between the ignition voltage feed circuit (pin 1 of E-44) and a
known good ground.
Does the test lamp illuminate? —
Go to Step 5 Go to Step 7
5 Intermittently jump the signal circuit (pin 3 of E-44)
with a test lamp that is connected to a known good
ground while observing the Vehicle Speed
parameter with a scan tool.
Does the scan tool indicate any vehicle speed
when the circuit is intermittently pulled to ground? —
Go to Step 6 Go to Step 9
6 Connect a test lamp between the voltage feed
circuit and the low reference circuit (pins 1 and 2 of
E-44).
Does the test lamp illuminate? —
Go to Step 10 Go to Step 8
7 Repair the open circuit or high resistance between
the Meter (10A) fuse and the VSS (pin 1 of E-44).
Check the Meter (10A) fuse first.
Did you complete the repair? —
Go to Step 15
—
8Repair the open circuit or high resistance on the
low reference circuit between the VSS (pin 2 of E-
44) and ground terminal (E-10). Clean or tighten
ground as necessary.
Did you complete the repair? —
Go to Step 15
—
91. Test the signal circuit between the ECM (pin
62 of C-58) and the VSS (pin 3 of E-44), then
between the instrument panel (IP) cluster (pin
8 of B-23) and the VSS (pin 3 of E-44) for the
following conditions:
• An open circuit
• A short to ground
• A short to the low reference circuit
• A short to battery or ignition voltage
• High resistance
2. Repair the circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 15 Go to Step 11

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-183
DTC P0565 (Flash Code 515)
Circuit Description
The cruise control keeps the vehicle speed at a driver's
set speed. When the cruise main switch is turned ON,
signal is provided to the ECM and the cruise main
indicator lamp on the switch or the instrument panel
cluster will light up. If the ECM detects the cruise main
switch signal repeats ON/ OFF or continuously ON, this
DTC will set.
Condition for Running the DTC • The ignition switch is ON.
• The engine is running.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects that the cruise main switch signal is repeated ON/ OFF continuously within a
very short calibrated time.
• The ECM detects that the cruise main switch signal is stuck at the ON position (high voltage) for
longer than 15 seconds. Action Taken When the DTC Sets
• The ECM will not illuminate the MIL or SVS lamp. Refer to DTC Type Definitions for Action Taken
When the DTC Sets - Type D.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Notice: • This DTC will set if the cruise main switch continues being pushed for longer than 15
seconds.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0565
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Observe the Cruise Main Switch parameter with a scan tool.
Does the scan tool indicate ON when the switch is
pushed and OFF when the switch is released? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Disconnect the cruise main switch harness connector. (Remove the switch from the IP
bezel as necessary)
3. Turn ON the ignition, with the engine OFF.
Does the Cruise Main Switch indicate OFF? —
Go to Step 5 Go to Step 4
4 1. Test the signal circuit between the ECM (pin
14 of C-58) and the cruise main switch (pin 3
of B-67) for a short to battery or ignition
voltage.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 7 Go to Step 6
5 Repair or replace the cruise main switch.
Did you complete the repair or replacement? —
Go to Step 7
—
6Important:
Replacement ECM must be
programmed and learned.
Replace the ECM. Refer to ECM Replacement.
Did you complete the replacement? —
Go to Step 7
—

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-185
DTC P0566 (Flash Code 516)
Circuit Description
The cruise control keeps the vehicle speed at a driver's
set speed. When the cruise main switch is turned ON,
signal is provided to the ECM and the cruise main
indicator lamp on the switch or the instrument panel
cluster will light up. The cruise cancel switch is a
normally closed type switch. When the cruise cancel
switch is applied, the switch signal to the ECM is
stopped (low voltage) and the cruise control system is
inactive. If the ECM detects the cruise cancel switch
signal repeats ON/ OFF or continuously OFF this DTC
will set.
Condition for Running the DTC • The ignition switch is ON.
• The engine is running.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects that the cruise cancel switch signal is repeated ON/ OFF continuously within a
very short calibrated time.
• The ECM detects that the cruise cancel switch signal is stuck at the OFF position (low voltage) for
longer than 40 seconds. Action Taken When the DTC Sets
• The ECM will not illuminate the MIL or SVS lamp. Refer to DTC Type Definitions for Action Taken
When the DTC Sets - Type D.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Notice: • This DTC will set if the cruise cancel switch continues being applied for longer than 40
seconds.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0566
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Observe the Cruise Cancel Switch parameter with a scan tool.
Does the scan tool indicate OFF when the switch is
applied and ON when the switch is released? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Disconnect the combination switch harness connector (B-59). (Remove the IP cluster
lower cover as necessary)
3. Turn ON the ignition, with the engine OFF.
4. Connect a test lamp between the ignition voltage feed circuit of the combination switch
harness (pin 11 of B-59 male side) and a
known good ground.
Does the test lamp illuminate? —
Go to Step 4 Go to Step 5

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-187
DTC P0567 (Flash Code 517)
Circuit Description
The cruise control keeps the vehicle speed at a driver's
set speed. When the cruise main switch is turned ON,
signal is provided to the ECM and the cruise main
indicator lamp on the switch or the instrument panel
cluster will light up. When the cruise resume/ accel.
switch is applied, the switch signal is provided to the
ECM and the vehicle speed is reset to the previous set
speed or vehicle speed is increased. If the ECM
detects the cruise resume/ accel. switch signal repeats
ON/ OFF or continuously ON, this DTC will set.
Condition for Running the DTC • The ignition switch is ON.
• The engine is running.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects that the cruise resume/ accel. switch signal is repeated ON/ OFF continuously
within a very short calibrated time.
• The ECM detects that the cruise resume/ accel. switch signal is stuck at the ON position (high
voltage) for longer than 120 seconds. Action Taken When the DTC Sets
• The ECM will not illuminate the MIL or SVS lamp. Refer to DTC Type Definitions for Action Taken
When the DTC Sets - Type D.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Notice: • This DTC will set if the cruise resume/ accel. switch continues being applied for longer than 120
seconds.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0567
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Observe the Cruise Resume Switch parameter with a scan tool.
Does the scan tool indicate ON when the switch is
applied and OFF when the switch is released? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Disconnect the combination switch harness connector (B-59). (Remove the IP cluster
lower cover as necessary)
3. Turn ON the ignition, with the engine OFF.
Does the Cruise Resume Switch parameter
indicate OFF? —
Go to Step 5 Go to Step 4
4 1. Test the signal circuit between the ECM (pin
29 of C-58) and the combination switch (pin 9
of B-59) for a short to battery or ignition
voltage.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 7 Go to Step 6
5 Repair or replace the combination switch.
Did you complete the repair or replacement? —
Go to Step 7
—

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-189
DTC P0568 (Flash Code 518)
Circuit Description
The cruise control keeps the vehicle speed at a driver's
set speed. When the cruise main switch is turned ON,
signal is provided to the ECM and the cruise main
indicator lamp on the switch or the instrument panel
cluster will light up. When the cruise set/ coast switch is
turned ON, the switch signal is provided to the ECM
and the vehicle speed is set or vehicle speed is
decreased. If the ECM detects the cruise set/ coast
switch signal repeats ON/ OFF or continuously ON, this
DTC will set.
Condition for Running the DTC • The ignition switch is ON.
• The engine is running.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects that the cruise set/ coast switch signal is repeated ON/ OFF continuously within a
very short calibrated time.
• The ECM detects that the cruise set/ coast switch signal is stuck at the ON position (high voltage) for
longer than 120 seconds. Action Taken When the DTC Sets
• The ECM will not illuminate the MIL or SVS lamp. Refer to DTC Type Definitions for Action Taken
When the DTC Sets - Type D.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Notice: • This DTC will set if the cruise set/ coast switch continues being pushed for longer than 120
seconds.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0568
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn ON the ignition, with the engine OFF.
3. Observe the Cruise Set Switch parameter with a scan tool.
Does the scan tool indicate ON when the switch is
pushed and OFF when the switch is released? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Disconnect the combination switch harness connector (B-59). (Remove the switch from
the IP bezel as necessary)
3. Turn ON the ignition, with the engine OFF.
Does the Cruise Set Switch parameter indicate
OFF? —
Go to Step 5 Go to Step 4
4 1. Test the signal circuit between the ECM (pin
30 of C-58) and the combination switch (pin
12 of B-59) for a short to battery or ignition
voltage.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 7 Go to Step 6
5 Repair or replace the combination switch.
Did you complete the repair or replacement? —
Go to Step 7
—

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ISUZU KB P190 2007

6E-206 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
DTC P0650 (Flash Code 77)
Circuit Description
The malfunction indicator lamp (MIL) is located on the
instrument panel (IP) cluster. The MIL informs the
driver that an emission system fault has occurred and
that the engine control system requires service.
The ECM monitors the MIL control circuit for conditions
that are incorrect for the commanded state of the MIL.
For example, a failure condition exists if the ECM
detects low voltage when the MIL is commanded OFF,
or high voltage when the MIL is commanded ON. If the
ECM detects an improper voltage level on the control
circuit, this DTC will set.
Condition for Running the DTC • The ignition voltage is more than 9 volts.
• The ignition switch is ON.
Condition for Setting the DTC
Either of following condition is met: • The ECM detects a low voltage condition on the MIL control circuit when the lamp is commanded
OFF. • The ECM detects a high voltage condition on the
MIL control circuit when the lamp is commanded
ON.
Action Taken When the DTC Sets • The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for
Action Taken When the DTC Sets - Type A.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the MIL/ DTC - Type A.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P0650
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Verify whether the instrument panel (IP)
cluster is operational.
2. Install a scan tool.
3. Perform the Malfunction Indicator Lamp (MIL) Control with a scan tool.
4. Command the lamp ON and OFF.
Does the MIL turn ON and OFF with each
command? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Inspect the Meter (10A) fuse in the cabin fuse block.
Is the Meter (10A) fuse open? —
Go to Step 4 Go to Step 5
4 Replace the Meter (10A) fuse. If the fuse continues
to open, repair the short to ground on one of the
circuits that is fed by the Meter (10A) fuse or
replace the shorted attached component.
Did you complete the repair? —
Go to Step 17
—
51. Turn OFF the ignition.
2. Disconnect the ECM J-2 (C-58) harness connector.
3. Turn ON the ignition, with the engine OFF.
Is the MIL OFF? —
Go to Sep 6 Go to Step 12

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-257
DTC P1664 (Flash Code 76)
Circuit Description
The service vehicle soon (SVS) lamp is located on the
instrument panel (IP) cluster. The SVS lamp informs
the driver that a non-emission related fault has
occurred and vehicle service required.
The ECM monitors the SVS lamp control circuit for
conditions that are incorrect for the commanded state
of the SVS lamp. For example, a failure condition exists
if the ECM detects low voltage when the SVS lamp is
commanded OFF, or high voltage when the SVS lamp
is commanded ON. If the ECM detects an improper
voltage level on the control circuit, this DTC will set.
Condition for Running the DTC • The ignition voltage is more than 9 volts.
• The ignition switch is ON.
Condition for Setting the DTC
Low Voltage DTC • The ECM detects a low voltage condition on the SVS lamp control circuit when the lamp is
commanded OFF.
High Voltage DTC
• The ECM detects a high voltage condition on the SVS lamp control circuit when the lamp is
commanded ON. Action Taken When the DTC Sets
Low Voltage DTC • The ECM will not illuminate the MIL or SVS lamp.
• Refer to DTC Type Definitions for Action Taken When the DTC Sets - Type D.
High Voltage DTC
• The ECM illuminates the SVS lamp when the diagnostic runs and fails. Refer to DTC Type
Definitions for Action Taken When the DTC Sets -
Type C.
Condition for Clearing the DTC
Low Voltage DTC • Refer to DTC Type Definitions for Condition for Clearing the DTC - Type D.
High Voltage DTC
• Refer to DTC Type Definitions for Condition for Clearing the SVS Lamp/ DTC - Type C.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC P1664
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Verify whether the instrument panel (IP)
cluster is operational.
2. Install a scan tool.
3. Perform the Service Vehicle Soon (SVS) Lamp Control with a scan tool.
4. Command the lamp ON and OFF.
Does the SVS lamp turn ON and OFF with each
command? —
Go to Diagnostic Aids Go to Step 3
3 1. Turn OFF the ignition.
2. Inspect the Meter (10A) fuse in the cabin fuse block.
Is the Meter (10A) fuse open? —
Go to Step 4 Go to Step 5
4 Replace the Meter (10A) fuse. If the fuse continues
to open, repair the short to ground on one of the
circuits that is fed by the Meter (10A) fuse or
replace the shorted attached component.
Did you complete the repair? —
Go to Step 17
—

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6E-300 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
DTC U0001 or U0101 (Flash Code 84 or 85)
Circuit Description
The ECM, the transmission control module (TCM), the
immobilizer control unit (ICU), the data recording
module (DRM), instrument panel (IP) cluster and scan
tool communicate control and diagnostic information
via a controller area network (CAN) communication
bus. The ECM monitors CAN operational status by
expecting a constant flow of messages from the TCM,
ICU, DRM and IP cluster. If the ECM fails to send or
receive an expected message from the TCM, ICU,
DRM and IP cluster, DTC U0001 or U0101 will set
depending on what communication is lost.
Condition for Running the DTC • The battery voltage is more than 9 volts.
• The ignition switch is ON.
Condition for Setting the DTC • The ECM detects that the CAN Bus OFF status. (DTC U0001)
• The ECM detects that the CAN Bus messages from the TCM are not being received. (DTC
U0101) Action Taken When the DTC Sets
• The ECM illuminates the MIL when the diagnostic runs and fails. Refer to DTC Type Definitions for
Action Taken When the DTC Sets - Type A.
• The ECM inhibits cruise control.
Condition for Clearing the DTC • Refer to DTC Type Definitions for Condition for Clearing the MIL/ DTC - Type A.
Diagnostic Aids • If an intermittent condition is suspected, refer to Intermittent Conditions in this section.
Notice: • If the TCM has DTCs set, clear the DTCs in the TCM first.
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing DTC U0001 or U0101
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 Refer to Scan Tool Does Not Communicate with
The CAN Device in this section.
Did you complete the action? —
Go to Step 3
—
31. Reconnect all previously disconnected
harness connector(s).
2. Clear the DTCs with a scan tool.
3. Turn OFF the ignition for 30 seconds.
4. Start the engine.
5. Operate the vehicle within the Conditions for Running the DTC. You may also operate the
vehicle within the conditions that you
observed from the Freeze Frame/ Failure
Records.
Did the DTC fail this ignition? —
Go to Step 2 Go to Step 4
4 Observe the DTC information with a scan tool.
Are there any DTCs that you have not diagnosed? —
Go to DTC List System OK

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6E-306 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Glow Control System Check
Description
The glow control system consists of the ECM, the glow
relay, the glow indicator lamp and glow plugs. The glow
control system is operated when the engine coolant
temperature is low, which allows easier engine starting.
The ECM commands the glow relay ON for a certain
length of time at ignition switch is ON with engine OFF.
In after glow phase, the glow plugs remain energized
for a certain period with engine run.
Glow Control Operation • The glow indicator lamp illuminates between 0.5 seconds to 7 seconds depending upon the engine
coolant temperature. • The pre glow control system operates when the
engine coolant temperature is less than 30 °C
(86 °F).
• The after glow control system operates when the engine coolant temperature is less than 60 °C
(140 °F).
Schematic Reference: Engine Controls Schematics
Connector End View Reference: Engine Controls
Connector End Views or ECM Connector End Views
Circuit/ System Testing Glow Control System Check (1 of 2)
Step Action Value(s)Yes No
1 Did you perform the Diagnostic System Check -
Engine Controls? —
Go to Step 2 Go to Diagnostic
System Check -
Engine Controls
2 1. Install a scan tool.
2. Turn OFF the ignition for 30 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Monitor the DTC Information with a scan tool.
Is DTC P0117, P0118 or P0380 set? —
Refer to Applicable DTC Go to Step 3
3 Notice:
If no glow indicator lamp is equipped, skip
to Step 3.
1. Verify whether the instrument panel (IP) cluster is operational.
2. Perform the Glow Plug Lamp Control with a scan tool.
3. Command the lamp ON and OFF.
Does the glow indicator lamp turn ON and OFF
with each command? —
Go to Step 4 Go to 2 of 2 Step 1
4 1. Turn OFF the ignition.
2. Make sure the metal bus bar that connects switched battery voltage supply terminal (E-
49) and all glow plugs is secured tightly.
3. Turn ON the ignition, with the engine OFF
4. Connect a test lamp between the metal bus bar (glow plug power supply E-49 terminal)
and a known good ground.
5. Perform the Glow Relay Control with a scan tool.
6. Command the relay ON while observing the test lamp.
Does the test lamp turn ON only when commanded
ON? —
Go to Step 5 Go to Step 6

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6E-318 ENGINE CONTROL SYSTEM (4JK1/4JJ1)
Circuit/ System Testing Cruise Control System Check (2 of 2)
28Reconnect all previously disconnected
components, fuse or harness connector(s).
Did you complete the action? —
Go to Step 2
—
Step Action Value(s)Yes No
1 1. Verify whether the instrument panel (IP)
cluster is operational.
2. Install a scan tool.
3. Perform the Lamp Control with a scan tool.
4. Command the lamp ON and OFF with a scan tool.
5. Perform the Cruise Set Lamp Control with a scan tool.
6. Command the lamp ON and OFF with a scan tool.
Are both lamps ON and OFF when commanded
with a scan tool? —
Go to Intermittent Conditions Go to Step 2
2 Is the cruise main lamp inoperative? —Go to Step 3 Go to Step 7
3 1. Remove the Meter (10A) fuse that supplies
voltage to the IP cluster (Euro 4 specification)
or the Engine (10A) fuse that supplies voltage
to the cruise main switch (Except Euro 4
specification).
2. Turn ON the ignition, with the engine OFF.
3. Measure the voltage from the cruise main lamp control circuit in the ECM harness
connector (pin 50 of C-58) to a good ground.
Is the voltage less than the specified value? 1 volt
Go to Step 4 Go to Step 6
4 1. Turn OFF the ignition.
2. Reinstall the Meter (10A) or Engine (10A) fuse.
3. Turn ON the ignition, with the engine OFF.
4. Connect a 3-amp fused jumper wire between the cruise main lamp control circuit of the
ECM harness connector (pin 50 of C-58) and
a known good ground.
Is the cruise main lamp illuminated? —
Go to Step 12 Go to Step 5
5 1. Test the control circuit between the ECM (pin
50 of C-58) and the IP cluster (pin 2 of B-23)
or the cruise main switch (pin 6 of B-67) for an
open circuit or high resistance.
2. Repair the circuit(s) as necessary.
Did you find and correct the condition? —
Go to Step 15 Go to Step 11
6 Repair the short to battery or ignition voltage on the
control circuit between the ECM (pin 50 of C-58)
and the IP cluster (pin 2 of B-23) or the cruise main
switch (pin 6 of B-67).
Did you complete the repair? —
Go to Step 15
—
Step Action Value(s)Yes No

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