Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Electronic Systems Caterpillar


F331 Transmission Solenoid Creeper - Low Current

Usage:

45 3BK



Illustration 1g00563953

(1) Chassis Control Module (CCM). (2) Transmision Solenoid Creeper.

This fault code indicates the Transmission Solenoid CREEPER output circuit has a lower than normal current and may be due to an open circuit or missing solenoid.

  1. Visually inspect fuel solenoid, Rear Main harness and connectors ("C179" and "C001") for frayed wires, pulled connector terminals, broken or damaged parts.

    Expected Result: There is damaged parts or broken parts.

    • YES, repair damaged parts as appropriate, reconnect both connectors and recheck fault codes. If fault code is not active, repair is complete.

    • NO, go to Step 2.

  1. Enter Mode 7 at the Electronic Monitoring Center (EMC). Select and turn ON identification number P359 (Transmission Solenoid CREEPER).

    Expected Result: The solenoid is magnetized when the output is switched on. The solenoid is de-energized when the output is switched off.

    • YES, go to Step 6.

    • NO, go to Step 3.

  1. Disconnect connector "C179" and measure resistance across terminals A and B of solenoid.

    Expected Result: The resistance measures between 1.6 and 1.9 ohms.

    • YES, go to Step 4.

    • NO, replace Transmission Solenoid CREEPER and recheck fault codes. If fault code is not active, repair is complete.

  1. Check for open circuit in Rear Main harness from "C179-B" to chassis ground.

    Expected Result: There is an open circuit.

    • YES, locate and repair open circuit in Rear Main harness. Check fault code and if no longer active the repair is complete.

    • NO, go to Step 5.

  1. Check for open circuit in Rear Main harness from "C001-G" to "C179-A".

    Expected Result: There is an open circuit.

    • YES, locate and repair open circuit in Rear Main harness. Check fault code and if no longer active the repair is complete.

    • NO, go to Step 6.

  1. Download latest control module software into all control modules.

    Expected Result: The fault code is active.

    • YES, go to Step 7.

    • NO, repair is complete. Calibrate transmission and three-point hitch.

  1. Replace the Chassis Control Module (CCM).

    Expected Result: The fault code is active.

    • YES, install the original CCM and repeat this troubleshooting procedure.

    • NO, go to Step 8.

  1. Install the original CCM.

    Expected Result: The fault code is active.

    • YES, original CCM was faulty. Replace original CCM with new CCM. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.

    • NO, this fault code may have been caused by faulty connectors. Keep the original on the tractor. Clean all terminals on the CCM and reconnect. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.

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