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Home >> Isuzu >> 2007 >> Ascender RWD >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Wiring Systems And Power Management - Troubleshooting & Diagnosis >> Ignition Can/Cannot Be Turned Off with Transmission in Any Gear

Ignition Can/Cannot Be Turned Off with Transmission in Any Gear

Ignition Can/Cannot Be Turned Off with Transmission in Any Gear

Step Action Yes No
Schematic Reference:  Ignition Lock Schematics 
Connector End View Reference:  Power and Grounding Connector End Views 
1 Did you review the Steering Wheel and Column Operation and perform the necessary inspections? Go to Step 2  Go to Steering Wheel and Column Description and Operation
2
  1. Push the ignition lock cylinder control actuator release button which is on the underside of the ignition key cylinder.
  2. Turn the key to the OFF position and remove the key.
Were you able to turn the key to the OFF position and remove the key?
Go to Step 3  Go to Ignition Key Cannot Be Removed from the Ignition Lock Cylinder 
or
Ignition Key Cannot Turn or Sticks in Any Position 
3 Verify the fault is present.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections  Go to Step 4 
4
  1. Turn OFF the ignition.
  2. Disconnect the ignition lock cylinder control actuator.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the battery positive voltage and ground circuits of the ignition lock cylinder control actuator.
  5. Cycle the gear shift from Park to Drive.
Does the test lamp turn ON and OFF with each cycle?
Go to Step 12  Go to Step 5 
5 Connect a test lamp between the ground circuit of the ignition lock cylinder control actuator and B+ voltage.
Does the test lamp illuminate?
Go to Step 6  Go to Step 8 
6
  1. Turn OFF the ignition.
  2. Reconnect the ignition lock cylinder control actuator.
  3. Disconnect the floor shift control connector.
  4. Turn ON the ignition, with the engine OFF.
  5. Connect a test lamp between the battery positive voltage and ground circuits of the ignition lock cylinder control switch.
Does the test lamp illuminate?
Go to Step 11  Go to Step 7 
7 Connect a test lamp between battery positive circuit of the ignition lock cylinder control switch and a good ground.
Does the test lamp illuminate?
Go to Step 10  Go to Step 9 
8 Repair the open in the ground circuit of the ignition lock cylinder control actuator circuit. Refer to Wiring Repairs .
Did you complete the repair?
Go to Step 15  -
9 Repair the open or short to ground of the ignition lock cylinder control switch battery positive voltage circuit. Refer to Wiring Repairs .
Did you complete the repair?
Go to Step 15  -
10 Repair the open, short to ground or short to voltage of the ignition lock cylinder control switch signal circuit. Refer to Wiring Repairs .
Did you complete the repair?
Go to Step 15  -
11 Inspect for poor connections at the ignition lock cylinder control switch. Refer to Testing for Intermittent Conditions and Poor Connections  and Connector Repairs .
Did you find and correct the condition?
Go to Step 15  Go to Step 13 
12 Inspect for poor connections at the ignition lock cylinder control actuator. Refer to Testing for Intermittent Conditions and Poor Connections  and Connector Repairs .
Did you find and correct the condition?
Go to Step 15  Go to Step 14 
13 Replace the ignition lock cylinder control switch. Refer to Ignition and Start Switch Replacement .
Did you complete the replacement?
Go to Step 15  -
14 Replace the ignition lock cylinder control actuator. Refer to Steering Wheel Theft Deterrent Lock Replacement .
Did you complete the replacement?
Go to Step 15  -
15 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 4