COVER 2504357 - Caterpillar

Illustration 1 g00563505
(1) Chassis Control Module (CCM). (2) Transmission solenoid 2. (3) Transmission solenoid 3. This fault code indicates the Transmission Solenoid 2 output circuit has a higher than normal current and may be due to a short to ground.
Visually inspect Transmission Solenoid 2, Rear Main harness and connectors ("C169" 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.
Enter Mode 7 at the Electronic Monitoring Center (EMC). Select and turn ON identification number P354 (Transmission Solenoid 2). Expected Result: The solenoid is magnetized.
YES, go to Step 4.
NO, go to Step 3.
Disconnect connector "C001" at Chassis Control Module (CCM). Check for short circuit in Rear Main harness from connector "C001-D" to chassis ground. Expected Result: There is a short in the circuit.
YES, locate and repair short circuit in Rear Main harness. Check fault code and if no longer active the repair is complete.
NO, go to Step 8.
Turn OFF P354.Expected Result: The solenoid is de-energized.
YES, go to Step 5.
NO, go to Step 8.
Disconnect connector C169 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 6.
NO, replace Transmission Solenoid 2 and recheck fault codes. If fault code is not active, repair is complete.
Check for short circuit to the transmission case from terminals A or B of the solenoid. Expected Result: There is a short in the circuit.
YES, replace Transmission Solenoid 2 and recheck fault codes. If fault code is not active, repair is complete.
NO, go to Step 7.
Check for short circuit in Rear Main harness. Measure from connector "C001-D" or connector "C169-A" to chassis ground. Expected Result: There is a short in the circuit.
YES, locate and repair short circuit in Rear Main harness. Check fault code and if no longer active the repair is complete.
NO, go to Step 8.
Download latest control module software into all control modules. Expected Result: The fault code is active.
YES, go to Step 9.
NO, repair is complete. Calibrate transmission and three-point hitch.
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 10.
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.