(Table 80, contd)
Troubleshooting Test Steps
Values
Results
F. Turn the keyswitch to the OFF position.
G. Remove the jumper wire.
5. Check the Voltage at the Switch Connector
A. Turn the keyswitch to the OFF position.
B. Disconnect the mode selection switch.
C. Turn the keyswitch to the ON position.
D. Use a suitable multimeter to measure the voltage between the
signal terminal and the ground terminal at the switch connector.
E. Turn the keyswitch to the OFF position.
4.9 V to 5.1 V
Result:
The voltage is within the expected range.
Replace the mode selection switch.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result:
The voltage is not within the expected range.
Proceed to Test Step 6.
6. Check the Wiring for High Resistance
A. Turn the keyswitch to the OFF position.
B. Disconnect the mode selection switch. Disconnect the P1
connector.
C. Use a suitable multimeter to measure the resistance between
the following points:
·
P1:55 to the signal terminal at the switch connector
·
P1:77 to the ground terminal at the switch connector
Less than 5
Ohms
Result:
At least one of the resistance measurements is
greater than 5 Ohms.
The fault is in the wiring between the switch connector
and the P1 connector.
Replace the faulty wiring.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result:
Both resistance measurements are less than 5
Ohms.
Proceed to Test Step 7.
7. Check the Wiring for a Short Circuit
A. Turn the keyswitch to the OFF position.
B. Disconnect the P1 connector from the ECM.
C. Disconnect the mode selection switch.
D. Use a suitable multimeter to measure the resistance between
the following points:
·
P1:55 and all other terminals on the P1 connector
·
P1:77 and all terminals on the P1 connector
Greater than 1 k
Ohm
Result:
At least one of the resistance measurements is
less than 1 k Ohm.
There is a short in the wiring between the mode selection
switch and the P1 connector.
Replace the faulty wiring.
Use the electronic service tool to clear all logged diag-
nostic codes and verify that the repair eliminates the
fault.
Result:
All resistance measurements are greater than 1
k Ohm.
Contact the Dealer Solution Network (DSN).
i06015840
Motorized
Valve
-
Test
This
procedure
covers
the
following
codes:
158
UENR0612
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