• Code: 01.02.04:76
• Description: Engine PCA #04 memory check fail. Check (through R/W commands) the data lines and address lines to detect physical tracks' errors.
• Causes: a. PCA tracks are damaged or broken. b. Any component in the PCA is damaged or broken.
• Remedy: 1. Run subsystem diagnostic. 2. Replace the PCA. See Engine PCA.

• Code: 01.06.01:04
• Description: Engine adaptor PCA #01 to engine PCA communication fail. There is a communication error between the engine adaptor PCA #01 and the engine PCA #01.
• Causes: a. The flat cable between engine adaptor PCA and engine PCA is missing or not connected. b. The connection of the flat cable fails (not connected properly). c. The engine adaptor PCA supply cable is not connected (engine adaptor PCA not powered). d. Any fuses of the engine adaptor PCA are blown.
• Remedy: 1. Visual check of the flat cable between the engine adaptor PCA and engine PCA (both ends). 2. Physical check of the flat cable (push both ends). 3. Visual check of the voltage LEDs on the engine adaptor PCA; if they do not illuminate, check the supply cable and PCA fuses. 4. If the problem persists, replace the engine adaptor PCA. See Engine adaptor PCA. 5. If the problem still persists, call support.

• Code: 01.06.01:09
• Description: Engine adaptor PCA #01 to e-box interconnect PCA connection fail. There is an error in the assembly (connection) of the slot in the engine adaptor PCA #01 and e-box interconnect PCA.
• Causes: a. The engine adaptor PCA is not properly connected to the e-box interconnect PCA. b. There is a pin broken in the e-box interconnect PCA connector. c. The engine adaptor PCA is damaged. d. The e-box interconnect PCA is damaged.
• Remedy: 1. Visual check of the connection between engine adaptor PCA and e-box interconnect PCA. 2. Physical check of the connection between engine adaptor PCA and e-box interconnect PCA. 3. Replace the engine adaptor PCA. See Engine adaptor PCA. 4. Replace the e-box interconnect PCA. See E-box interconnect PCA. 5. If the problem persists, call support.

• Code: 01.06.01:10
• Description: Engine adaptor PCA #01 supply voltages out of range. The voltmeters in the engine adaptor PCA #01 sensed a voltage source (24V, 12V, 5V, or 3V3) out of its valid range.
• Causes: a. Any of the fuses of the engine adaptor PCA are blown. b. The engine adaptor PCA is damaged or broken. c. There is a short-circuit or an overcurrent consumption in at least one voltage source.
• Remedy: 1. Check the engine adaptor PCA fuses. 2. Check the overcurrent LEDs on the side of the engine adaptor PCA (it must be off). 3. Replace the engine adaptor PCA. See Engine adaptor PCA. 4. If the problem persists, call support.

• Code: 01.06.02:04
• Description: Engine adaptor PCA #02 to engine PCA communication fail. There is a communication error between the engine adaptor PCA #02 and the engine PCA #02.
• Causes: a. The flat cable between engine adaptor PCA and engine PCA is missing or not connected. b. The connection of the flat cable fails (not connected properly). c. The engine adaptor PCA supply cable is not connected (engine adaptor PCA not powered). d. Any fuses of the engine adaptor PCA are blown.
• Remedy: 1. Visual check of the flat cable between the engine adaptor PCA and engine PCA (both ends). 2. Physical check of the flat cable (push both ends). 3. Visual check of the voltage LEDs in engine adaptor PCA; if they do not illuminate, check the supply cable and PCA fuses. 4. If the problem persists, replace the engine adaptor PCA. See Engine adaptor PCA. 5. If the problem still persists, call support.

• Code: 01.06.02:09
• Description: Engine adaptor PCA #02 to e-box interconnect PCA connection fail. There is an error in the assembly (connection) of the slot in the engine adaptor PCA #02 and e-box interconnect PCA.
• Causes: a. The engine adaptor PCA is not properly connected to the e-box interconnect PCA. b. There is a pin broken in the e-box interconnect PCA connector. c. The engine adaptor PCA is damaged. d. The e-box interconnect PCA is damaged.
• Remedy: 1. Visual check of the connection between engine adaptor PCA and e-box interconnect PCA. 2. Physical check of the connection between engine adaptor PCA and e-box interconnect PCA. 3. Replace the engine adaptor PCA. See Engine adaptor PCA. 4. Replace the e-box interconnect PCA. See E-box interconnect PCA.

• Code: 01.06.02:10
• Description: Engine adaptor PCA #02 supply voltages out of range. The voltmeters in the engine adaptor PCA #02 sensed a voltage source (24V, 12V, 5V, or 3V3) out of its valid range.
• Causes: a. Any of the fuses of the engine adaptor PCA are blown. b. The engine adaptor PCA is damaged or broken. c. There is a short-circuit or an overcurrent consumption in at least one voltage source.
• Remedy: 1. Check the engine adaptor PCA fuses. 2. Check the overcurrent LEDs on the side of the engine adaptor PCA (it must be off). 3. Replace the engine adaptor PCA. See Engine adaptor PCA. 4. If the problem persists, call support.

• Code: 01.06.03:04
• Description: Engine adaptor PCA #03 to engine PCA communication fail. There is a communication error between the engine adaptor PCA #03 and engine PCA #03.
• Causes: a. The flat cable between the engine adaptor PCA and engine PCA is missing or not connected. b. The connection of the flat cable fails (not connected properly). c. The engine adaptor PCA supply cable is not connected (engine adaptor PCA not supplied). d. Any fuses of the engine adaptor PCA are blown.
• Remedy: 1. Visual check of the flat cable between the engine adaptor PCA and engine PCA (both ends). 2. Physical check of the flat cable (push both ends). 3. Visual check of the voltage LEDs in the engine adaptor PCA; if they do not illuminate, check the supply cable and PCA fuses. 4. If problem persists, replace the engine adaptor PCA. See Engine adaptor PCA. 5. If the problem still persists, call support.