Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.

Ignition/Vehicle - Off
Disconnect the electrical connector: X160 Inline Harness Connector
Ignition - On / Vehicle - In Service Mode

NOTE:

Testing for steps 4 to 5 is performed on the control module K20 side of the harness connector.

Test for 16 V (±3 V) between the test points:
- {Q17A Fuel Injector 1} Control circuit terminal 1 & Ground
- {Q17B Fuel Injector 2} Control circuit terminal 3 & Ground
- {Q17C Fuel Injector 3} Control circuit terminal 5 & Ground
- {Q17D Fuel Injector 4} Control circuit terminal 7 & Ground
- {Q17E Fuel Injector 5} Control circuit terminal 9 & Ground
- {Q17F Fuel Injector 6} Control circuit terminal 11 & Ground
- If not the specified value
  Refer to: DTC P0201-P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P1248-P124D, P2147, P2148, P2150, P2151, P2153, or P2154
- Go to next step: If the specified value
Test for 0.20 V (±0.17 V) between the test points:
- {Q17A Fuel Injector 1} Control circuit terminal 2 & Ground
- {Q17B Fuel Injector 2} Control circuit terminal 4 & Ground
- {Q17C Fuel Injector 3} Control circuit terminal 6 & Ground
- {Q17D Fuel Injector 4} Control circuit terminal 8 & Ground
- {Q17E Fuel Injector 5} Control circuit terminal 10 & Ground
- {Q17F Fuel Injector 6} Control circuit terminal 12 & Ground
- If not the specified value
  Refer to: DTC P0201-P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P1248-P124D, P2147, P2148, P2150, P2151, P2153, or P2154
- Go to next step: If the specified value

NOTE:

Testing for steps 6 to 7 is performed on the component side of the harness connector.

Test for less than 3 ohms between the test points:
- {Q17A Fuel Injector 1} Control circuit terminal 1 & Control circuit terminal 2
- {Q17B Fuel Injector 2} Control circuit terminal 3 & Control circuit terminal 4
- {Q17C Fuel Injector 3} Control circuit terminal 5 & Control circuit terminal 6
- {Q17D Fuel Injector 4} Control circuit terminal 7 & Control circuit terminal 8
- {Q17E Fuel Injector 5} Control circuit terminal 9 & Control circuit terminal 10
- {Q17F Fuel Injector 6} Control circuit terminal 11 & Control circuit terminal 12
- If 3 ohms or greater
1. Verify a condition does not exist with the component: Q17 Fuel Injector - Refer to: Component Testing
  - If a condition exists - Replace the component: Q17 Fuel Injector
  - If no condition exists - Repair the open/high resistance in the circuit.
- Go to next step: If less than 3 ohms
Test or replace the component: Q17 Fuel Injector