RepairPal is your advocate for car care advice and guidance

Q: Both mile counters have stopped working on 1998 Ford Mustang

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Both mile counters have stopped working (115,000 miles) although the dial speedometer continues to function. I thought it might be a fuse since they stopped suddenly, but I cant determine which of the 5 x 10 amp fuses under the steering column is in line with the mile counters. Can you help please, and do you think this is the likely problem ?
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
The "mile counters" are ODOMETERS. The "dial speedometer" is your MILES PER HOUR.

Vehicle Application: 2000 Ford Mustang 3.8L 2000 Ford Windstar 3.8L, Vin 4

Customer Concern: The Antilock Brake System (ABS) light is on, there is no speedometer operation and the odometer shows "-----" on its display. The ABS module will not communicate with the scan tool, though other vehicle modules will. The Powertrain Control Module (PCM) is setting codes U1039, P1502 and P0500. Tried another scan tool, still will not communicate.
Tests/Procedures: 1. Disconnect the ABS module and inspect the connector for signs of moisture.

2. Disconnect the brake pressure switch on the master cylinder and look for signs of brake fluid leaking through the switch. Replace the switch if necessary.

3. Check for adequate power at the ABS module on pins 9 Light Blue/Pink (LB/PK) and 25 Yellow/Light Green (YE/LG). Instead of using a test light or a voltmeter, load the circuit with a headlamp bulb to verify that both circuits can handle a load.

4. Perform the same load test on pin 23 Red/Black (RD/BK).

5. Perform a voltage drop test on the ABS module grounds at pins 8 and 24 Black (BK).

6. Verify that both Standard Corporate Protocol (SCP) communication wires at pins 17 Tan/Orange (TN/OG) and pin 15 Pink/Light Blue (PK/LB) have good continuity to the Data Link Connector (DLC).

7. If the power and grounds test out OK and the SCP wires are good, replace the ABS module and retest.
Potential Causes: Antilock Brake System (ABS) Control Module
Brake Pressure Switch
Speed Control Servo

Tech Tips: A brake pressure switch that leaks internally will allow brake fluid to wick down through the circuit into the connection of the speed control servo and ABS module, resulting in damage of both of the electronic components. Replacement of the ABS module requires the use of the Ford scan tool for a programming function.
Diagnostic Codes: P0500, P1502, U1039
Didn't find what you were looking for?