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DIAGNOSTIC - SELECTION
CASE TRAINING CENTER
AUGUST 2000
Troubleshooting Cause Action
Troubleshooting using the diagnostic system
Starting motor switch ON
Failure code displayed in DIAG 1
NO
To D IA G 4
YES
Display E0031
YES
Defective circuit in the regulator
Check the electronic
regulator
NO
Display E0032
YES
Problem with rack detector
signal in regulator
Same as above
NO
Display E0041
YES
Problem with TDC detector
signal
Same as above
Failure code displayed in DIAG 4
YES
M00B0
YES
Faulty engine electronic control
box
Change the engine
electronic control
box
NO
M0010 Check that the transistor output is not short circuited
YES
To CHK2"
Self-detection finds the short circuit
YES
The failure code disappears after disconnecting the solenoid
valve connector
YES
Defective solenoid valve
Change the
solenoid valve
NO
The failure code disappears after disconnecting connector
CN22
YES
Short circuit on wire between
CN22 and the solenoid valve
Repair the wiring
NO
The failure code disappears after disconnecting connector
CN23
YES
Short circuit on wire between
CN23 and the solenoid valve
Repair the wiring
NO
The failure code disappears after disconnecting connector
CN6
YES
Short circuit on wire between
CN23 and CN6
Repair the wiring
NO
The failure code disappears after disconnecting connector
CN5
YES
Short circuit on wire between
CN22 and CN5
Repair the wiring
NO
Electronic control box defective
Change the
electronic control
box
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