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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Diagnostic Information And Procedures (5 Of 5)) >> Diagnostic Information and Procedures >> DTC P2687-P2689 >> Typical Scan Tool Data

Typical Scan Tool Data

WARNING: This page is about a different variant/trim than selected.
Fuel Heater Control Circuit High Test Status

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Ignition = On
Parameter Normal Range:  Not Run/Okay
Ignition - Relay Coil Not Run/Okay Not Run/Okay Not Run/Okay
Control - Relay Coil Not Run/Okay Not Run/Okay Malfunction
Fuel Heater Control Circuit Low Test Status

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Ignition = On
Parameter Normal Range:  Not Run/Okay
Ignition - Relay Coil Malfunction Not Run/Okay Not Run/Okay
Control - Relay Coil Malfunction Not Run/Okay Not Run/Okay
Fuel Heater Control Circuit Open Test Status

Circuit Short to Ground Open Short to Voltage
Operating Conditions:  Ignition = On
Parameter Normal Range:  Not Run/Okay
Ignition - Relay Coil Not Run/Okay Malfunction Not Run/Okay
Control - Relay Coil Not Run/Okay Malfunction Not Run/Okay
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