Dodge Dakota (R1). Manual — part 154
TEST
ACTION
APPLICABILITY
3
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes
→
Repair as necessary
Perform ROAD TEST VERIFICATION - VER-2.
No
→
Test Complete.
4
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Turn the ignition on.
Measure the voltage between the Secondary Brake Switch Signal circuit and ground.
Is the voltage above 9.0 volts?
All
Yes
→
No
→
5
Disconnect the Brake Lamp Switch harness connector.
Turn the ignition on.
While monitoring the SEC BRAKE SWITCH status with the DRB, connect a jumper
wire between ground and the Secondary Brake Switch Signal circuit.
Does the DRB display change from PRESSED to RELEASED?
All
Yes
→
Adjust or replace the Brake Lamp Switch in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
6
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Measure the resistance between ground and the Secondary Brake Switch Ground
circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the Secondary Brake Switch Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
7
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
151
DRIVEABILITY - DIESEL
P1703-BRAKE SIGNAL PLAUS WITH REDUNDANT CONTACT —
Continued
TEST
ACTION
APPLICABILITY
8
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the Secondary Brake Switch Signal
circuit.
Is the resistance above 100 kohms?
All
Yes
→
No
→
Repair the Secondary Brake Switch Signal circuit for a short to
ground.
Perform ROAD TEST VERIFICATION - VER-2.
9
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Secondary Brake Switch Signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the Secondary Brake Switch Signal circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
10
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
11
Disconnect the Brake Lamp Switch harness connector.
Using a 12-volt test light connected to ground, check the Fused B+ circuit.
Does the test light illuminate brightly?
All
Yes
→
No
→
Repair the Brake Lamp Switch Fused B+ circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
12
Disconnect the Brake Lamp Switch harness connector.
Turn the ignition on.
While monitoring the PRIM BRAKE SWITCH status with the DRB, connect a
jumper wire between the Primary Brake Switch Signal circuit and the Fused B(+)
circuit.
Does the DRB display change from RELEASED to PRESSED?
All
Yes
→
Adjust or replace the Brake Lamp Switch in accordance with the
Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
152
DRIVEABILITY - DIESEL
P1703-BRAKE SIGNAL PLAUS WITH REDUNDANT CONTACT —
Continued
TEST
ACTION
APPLICABILITY
13
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Disconnect the ECM harness connectors.
Turn the ignition on.
Measure the voltage between the Primary Brake Switch Signal circuit and ground.
Is the voltage above 1.0 volt?
All
Yes
→
Repair the Primary Brake Switch Signal circuit for a short to
voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
→
14
Turn the ignition off.
Disconnect the Brake Lamp Switch harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Primary Brake Switch Signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→
No
→
Repair the Primary Brake Switch Signal circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
15
If there are no possible causes remaining, view repair.
All
Repair
Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
153
DRIVEABILITY - DIESEL
P1703-BRAKE SIGNAL PLAUS WITH REDUNDANT CONTACT —
Continued
Symptom List:
P1725-INDUCTIVE AUX. SPEED SENSOR DYN. PLAUSIBILITY
P1725-INDUCTIVE AUX. SPEED SENSOR OVERSPEED RECOGNI-
TION
P1725-INDUCTIVE AUX. SPEED SENSOR PLAUSIBILITY
P1725-INDUCTIVE AUX. SPEED SENSOR STATIC PLAUSIBILITY
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P1725-INDUCTIVE AUX. SPEED
SENSOR DYN. PLAUSIBILITY.
When Monitored and Set Condition:
P1725-INDUCTIVE AUX. SPEED SENSOR DYN. PLAUSIBILITY
When Monitored:
With the engine running.
Set Condition:
The ECM has determined that the inductive auxiliary speed sensor values
are incorrect during an engine speed transition.
P1725-INDUCTIVE AUX. SPEED SENSOR OVERSPEED RECOGNITION
When Monitored:
With the engine running.
Set Condition:
The ECM detects the engine speed signal from the needle movement
sensor has exceeded 6600 RPM.
P1725-INDUCTIVE AUX. SPEED SENSOR PLAUSIBILITY
When Monitored:
With the engine running.
Set Condition:
The ECM has determined that the needle movement sensor input is
incorrect.
P1725-INDUCTIVE AUX. SPEED SENSOR STATIC PLAUSIBILITY
When Monitored:
With the engine running.
Set Condition:
The ECM has determined that the inductive auxiliary speed sensor values
are incorrect.
POSSIBLE CAUSES
INTERMITTENT CONDITION
CHECK THE NEEDLE MOVEMENT SENSOR CONNECTOR TERMINALS
MIS-ROUTED WIRING HARNESS
NEEDLE MOVEMENT SENSOR SIGNAL CIRCUIT OPEN
NEEDLE MOVEMENT SENSOR GROUND CIRCUIT OPEN
ENGINE CONTROL MODULE
154
DRIVEABILITY - DIESEL
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст