F5H155 SPEEDOMETER - FLUSH MOUNT Force
H0202H82N, H0252B83G, H0257F88A, H0257F88B, H0352F90B, H0352F90C, H0353E91A, H0353E91B, H0356F89B, H0357C86A, H0357C87A, H0357C88B, H0357F88A, H0357F89C, H0357G90A, H0357H83N, H0457H82N, H0457H83P, H0504H88C, H0504H88D, H0504P89B, H0505C89B, H0507A89
SPEEDOMETER
Price: query
Rating:
Compatible models:
H0202H82N
H0252B83G
H0257F88A
H0257F88B
H0352F90B
H0352F90C
H0353E91A
H0353E91B
H0356F89B
H0357C86A
H0357C87A
H0357C88B
H0357F88A
H0357F89C
H0357G90A
H0357H83N
H0457H82N
H0457H83P
H0504H88C
H0504H88D
H0504P89B
H0505C89B
H0507A89C
H0507A89D
H0507A90A
H0507A90B
H0507A90C
H0507A90D
H0507A91A
H0507A91C
H0507A92A
H0507C88B
H0507Z89B
H0559H83R
H0606H84A
H0756H82H
H0758H82E
H0851X88A
H0853F88B
H0853F89C
H0853F89E
H0853F89F
H0853F89G
H0856A89A
H0856A89H
H0856C87A
H0856C87B
H0856F84A
H0856F85A
H0856F86A
H0856H82K
H0856L89D
H0856Y89B
H0858B82E
H0858C84H
H0903E91D
H0903F90B
H0903F90C
H0903F91A
H0903F91C
H0906A90A
H0906R83D
H1008H83C
H1058H82G
H1058V83H
H1158B82E
H1158H84G
H1251A88A
H1251A88B
H1251A88C
H1251A89A
H1251A89B
H1251A89C
H1251A89D
H1251A89E
H1251F84A
H1251F86A
H1251F87A
H1251F87B
H1251X85A
H1258H81A
H1408H82D
H1408H83E
Force
Force entire parts catalog list:
- ACCESSORIES » F5H155
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- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- SPECIAL TOOLS - ACCESSORIES » F5H155
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- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- SPECIAL TOOLS - ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- SPECIAL TOOLS - ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- SPECIAL TOOLS - ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- SPECIAL TOOLS - ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
- ACCESSORIES » F5H155
Information:
Table 1
Diagnostic Codes Table    
Description     Conditions which Generate this Code     System Response    
544-8 Engine Cooling Fan Speed Sensor abnormal frequency, pulse width, or period     The engine speed is equal to or greater than low idle but less than 2400 rpm for one minute.
The fan speed is less than 38 rpm or the fan speed is greater than 2000 rpm for two seconds.     The warning lamp will illuminate, if equipped.
The code is logged.    The fan speed sensor is a digital sensor that provides a speed signal from the engine cooling fan to the Electronic Control Module (ECM). The ECM controls the speed of the fan by varying the current to the fan speed solenoid. The ECM attempts to keep the fan within 50 rpm of the desired fan speed.The fan speed sensor receives a regulated 8.0 0.5 VDC supply voltage from the ECM. The fan speed sensor provides a pulse width modulated signal to the ECM that represents the speed of the fan. The frequency range of the output represents fan speeds from 50 rpm to 1800 rpm.Note: Refer to Troubleshooting, "Sensor Supply - Test" if the ECM has detected a problem with the digital sensor supply voltage.
Illustration 1 g01393234
Schematic for the fan speed sensorTest Step 1. Inspect Electrical Connectors and Wiring
Remove electrical power from the ECM.
Illustration 2 g01139425
ECM (1) J1/P1 connectors (2) J2/P2 connectors
Thoroughly inspect ECM connector J1/P1, ECM connector J2/P2, and all other connectors in the wiring harness. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Illustration 3 g01394757
P1 terminals that are associated with the cooling fan speed (P1-29) Sensor return (P1-35) +8 V digital supply
Illustration 4 g01394760
P2 terminal that is associated with the cooling fan speed (P2-25) Engine fan speed
Perform a 45 N (10 lb) pull test on each of the wires that are associated with the Cat Data Link.
Check the allen head screw on each ECM connector for the proper torque. Also, check the allen head screw on the customer connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.Expected Result:All connectors, pins, and sockets are completely inserted and coupled. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The harness and connectors appear to be OK. Proceed to Test Step 2.
Not OK - There is a problem with the connectors and/or wiring.Repair: Repair the connectors or wiring and/or replace the connectors or wiring. Ensure that all of the seals are properly in place and ensure that the connectors are completely coupled. Verify that the repair eliminates the problem.STOPTest Step 2. Check the Status of the Engine Fan Speed with Caterpillar Electronic Technician (ET)
Connect Cat ET to the service tool connector.
Restore electrical power to the ECM. Start the engine.
Compare the status for "Engine Fan Speed" to the status for "Desired Engine Fan Speed" on ET.
Remove electrical power from the ECM.Expected Result:"Engine Fan Speed" is within 50 rpm of "Desired Engine Fan Speed".Results:
OK - The engine fan speed is within the desired rpm range.Repair: The sensor is operating correctly. There may be an intermittent electrical problem in a connector or in the harness. If an intermittent problem is suspected, refer to Troubleshooting, "Electrical Connectors - Inspect".STOP
Not OK - The engine fan speed is not within the desired rpm range. Proceed to Test Step 3.Test Step 3. Check the Digital Sensor Supply Voltage at the Sensor Connector
Disconnect the connector for the engine cooling fan speed sensor.
Restore electrical power to the ECM.
Measure the voltage across terminal A (+8 V digital supply) and terminal B (sensor return).
Disconnect the connector for the engine cooling fan speed sensor.
Remove electrical power from the ECM.Expected Result:The digital sensor supply voltage should be 8.0 0.5 VDC.Results:
OK - The supply voltage is reaching the sensor. Proceed to Test Step 4.
Not OK - The supply voltage is not reaching the sensor. Proceed to Test Step 5.Test Step 4. Check for Shorts in the Harness From the Fan Speed Sensor to the ECM
Disconnect the ECM connectors J1/P1 and J2/P2.
Disconnect the connector for the engine cooling fan speed sensor.
Measure the resistance between terminal P1-35 (+8 V digital supply) and chassis ground.
Measure the resistance between terminal P1-35 (+8 V digital supply) and all of the other terminals on the P1 connector.
Measure the resistance between terminal P1-35 (+8 V digital supply) and all of the terminals on the P2 connector.
Measure the resistance between terminal P2-25 (engine fan speed) and chassis ground.
Measure the resistance between terminal P2-25 (+8 V digital supply) and all of the other terminals on the P2 connector.
Measure the resistance between terminal P2-25 (+8 V digital supply) and all of the terminals on the P1 connector.Expected Result:The resistance for each measurement indicates an open circuit.Results:
OK - The resistance measurement indicates an open circuit. Proceed to Test Step 5.
Not OK - The resistance measurement indicates there is a short between the ECM and the fan speed sensor.Repair: Repair the circuit.Verify that the repair eliminates the problem.STOPTest Step 5. Check for Open Circuits in the Harness From the Fan Speed Sensor to the ECM
Remove electrical power from the ECM.
Disconnect the ECM connectors J1/P1 and J2/P2.
Use a suitable piece of wire to short terminal P1-35 (+8 V digital supply) and terminal P1-29 (sensor return).
Disconnect the connector for the engine cooling fan speed sensor.
Measure the resistance between terminal A (+8 V digital supply) and terminal B (sensor return).
Use a suitable piece of wire to short terminal P2-25 (+8 V digital supply) and terminal P1-29 (sensor return).
Measure the resistance between terminal C (engine fan speed) and terminal B (sensor return).Expected Result:The resistance measurements do not indicate an open circuit.Results:
OK - The resistance measurements do not indicate an open circuit. Proceed to Test Step 6.
Not OK - There is an open circuit in the wiring harness between the fan speed sensor and the
Parts speedometer Force:
F5H003
F5H003 SPEEDOMETER FLUSH MOUNT
H0202B81M, H0307H81D, H0558H79L, H0559H80N, H0756H81G, H0757H78D, H0850H79A, H0850H80A, H0850H81C, H0851H79A, H0855H79A, H0856B80H, H0857B78F, H0857H79G, H0858B80C, H0859B79B, H0859H77A, H1000H79A, H1004H79A, H1006B80B, H1006B81C, H1007H79A, H1008H80
F5H154
F5H154 SPEEDOMETER FLUSH MOUNT
H0252B83G, H0457H82N, H0457H83P, H0503H84B, H0507B85A, H0507C86A, H0507C87A, H0507C87C, H0507F87B, H0507F88A, H0507H82B, H0559H83R, H0606H84A, H0756H82H, H0758H82E, H0851X88A, H0853F88B, H0853F89C, H0853F89E, H0853F89F, H0853F89G, H0856A89A, H0856A89