PS S5.7 5410
000 OE35
Version no T-code
F-code Section C-code
EV100 LX Control Status Codes
170
Service Manual 1997-10-22
STATUS CODE
-26
DESCRIPTION MEMOR
RECALL
Yes
Shorted coil driver for SP contactor
CIRCUIT
Traction
SYMPTOM
SP contactor picks up immediately when key switch is closed.
POSSIBLE CAUSE
Defective coil driver internal to logic card
*
Replace logic card.
Figure 1.
STATUS INDICATION CRITERIA
This status code is displayed when there is a
shorted SP coil driver.
STATUS CODE
-41
DESCRIPTION MEMOR
RECALL
No
Open thermal protector or control over temperature.
CIRCUIT
Traction
SYMPTOM
Reduced or no power to traction motor in SCR range.
POSSIBLE CAUSE
Open thermal protector circuit
*
Check for loose connection or broken wire between:
Black wire - Thermal protector and PZ1
Gray wire - Thermal protector and PZ5.
Defective thermal protector.
*
Disconnect wires from PZ1 and PZ5. At room temperature
(25°C or 75°F) measure resistance between black and gray
wire. Replace TP if ohmic value is greater than 300 ohms.
SCR is in thermal cut-back.
*
Allow control to cool, status code should disappear.
Figure 1.
STATUS INDICATION CRITERIA
This status code is displayed when the voltage
between PZ1 and PZ5 is greater than 1.8 volts.
Thermal
Protector
Black
Gray
PZ5
PZ1
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