3
DIAGNOSTICS
Automatic gearbox CF65/75/85 series
5-6
Main code Sub-code RECOMMENDED PROCEDURES
Hardware/software not compatible
36 00 1. Replace ECU if possible.
2. Re-program ECU if possible.
3. If replacement or re-programming is not possible, contact your
Allison dealer.
Interruption or short circuit in electromagnetic valve circuit
41 12
13
14
15
16
20
22
23
24
25
26
Check the following points:
a. Gearbox main connector is connected, is firmly attached, is clean
and undamaged.
b. ECU connector is connected, is firmly attached, is clean and
undamaged.
c. Visual inspection of the wiring harness: no damage, no chafed or too
taut wires, no screws through the wiring harness.
d. No interruptions or short circuits between wires or earth in wiring
harness.
Replace wiring harness if necessary.
If all points are in order, contact your Allison dealer.
Short circuit in the electromagnetic valve circuit to the battery
42 12
13
14
15
16
21
22
23
24
25
26
Check the following points:
a. Gearbox main connector is connected, is firmly attached, is clean
and undamaged.
b. ECU connector is connected, is firmly attached, is clean and
undamaged.
c. Visual inspection of the wiring harness: no damage, no chafed or too
taut wires, no screws through the wiring harness.
d. No interruptions or short circuits between wires or earth in wiring
harness.
e. Replace wiring harness if necessary.
f. Incompetent repairs.
If all points are in order, contact your Allison dealer.
ECU circuits
43 21
25
26
1. Replace the ECU.
2. Contact your Allison dealer.
1
ᓻ 200337
https://www.truck-manuals.net/
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