Cruze |
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• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Pressure Control Solenoid Valve 2 Control | P0966 | P0967 | P0967 | P0965 |
Circuit | Short to Ground | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|
Operating Conditions: Engine running, normal operating temperature Parameter Normal Range: OK | ||||
Pressure Control Solenoid Valve 2 Control | -- | -- | -- | Fault or Malfunction |
Circuit | Short to Ground | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|
Operating Conditions: Engine running, normal operating temperature Parameter Normal Range: OK | ||||
Pressure Control Solenoid Valve 2 Control | Fault or Malfunction | -- | -- | -- |
Circuit | Short to Ground | Open | Short to Voltage | Signal Performance |
---|---|---|---|---|
Operating Conditions: Engine running, normal operating temperature Parameter Normal Range: OK | ||||
Pressure Control Solenoid Valve 2 Control | - | Fault or Malfunction | Fault or Malfunction | -- |
The clutch pressure (PC) solenoid 2 is part of the control solenoid valve assembly which has no serviceable components. The normally high clutch PC solenoid 2 regulates and directs the clutch PC solenoid 2 oil pressure to the 3-5 reverse clutch regulator valve. Increasing clutch PC solenoid 2 pressure increases pressure to the 3-5 reverse clutch. The transmission control module (TCM) varies the current to the PC solenoid 2 through a low side driver. Decreasing the current to the clutch PC solenoid 2 increases clutch PC solenoid 2 oil pressure by closing OFF the solenoid exhaust port. Increasing the current to the clutch PC solenoid 2 decreases clutch PC solenoid 2 oil pressure by opening the solenoid exhaust port. Clutch PC solenoid 2 power is supplied by the TCM through a high side driver (HSD). The HSD protects the circuit and components from excessive current flow. If excessive current flow is detected, the HSD will turn OFF. When the fault is corrected, the HSD will reset.
• | The engine speed is 400 RPM or greater for 5 seconds. |
• | The ignition voltage is 9.0 volts or greater. |
The TCM detects an internal electrical performance malfunction of the clutch PC solenoid 2 control circuit where the measured clutch PC solenoid 2 current does not equal the commanded clutch PC solenoid 2 current for 5 seconds.
The TCM detects a short-circuit to ground on the clutch PC solenoid 2 control circuit for 1 second.
The TCM detects an open or short-circuit to voltage on the clutch PC solenoid 2 control circuit for 1 second.
• | DTC P0965 is a Type C DTC. |
• | The TCM freezes transmission adaptive functions on the 3-5 Reverse clutch. |
• | DTC P0966 is a Type A DTC. |
• | The TCM limits the transmission to 5th gear and reverse. |
• | The TCM commands maximum line pressure. |
• | The TCM freezes transmission adaptive functions. |
• | The TCM forces the torque converter clutch (TCC) OFF. |
• | The TCM forces the HSD OFF. |
• | The TCM inhibits Tap Up/Down function. |
• | The TCM inhibits manual shifting of forward gears. |
• | The TCM enables torque management. |
• | DTC P0967 is a Type A DTC. |
• | The TCM limits the transmission to 3rd gear and reverse. |
• | The TCM freezes transmission adaptive functions. |
• | The TCM commands maximum line pressure. |
• | The TCM inhibits Tap Up/Down function. |
• | The TCM inhibits manual shifting of forward gears. |
• | DTC P0965 is a Type C DTC. |
• | DTCs P0966 and P0967 are Type A DTCs. |
Automatic Transmission Controls Schematics
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Control Module References for scan tool information
DT-48616-10 Adapter Harness
For equivalent regional tools, refer to Special Tools .
• | Pressure Control Solenoid Valve 2 Performance Test Status |
• | Pressure Control Solenoid Valve 2 Control Circuit High Voltage Test Status |
• | Pressure Control Solenoid Valve 2 Control Circuit Low Voltage Test Status |
Note: You must perform the Circuit/System Verification first.
• | Pressure Control Solenoid Valve 2 Performance Test Status |
• | Pressure Control Solenoid Valve 2 Control Circuit High Voltage Test Status |
• | Pressure Control Solenoid Valve 2 Control Circuit Low Voltage Test Status |
⇒ | If any test status parameter displays Fault or Malfunction, replace the Q8 control solenoid valve assembly. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Note: Before replacing the TCM, perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection . |
• | Refer to Control Module References for control solenoid valve assembly replacement, set-up, and programming. |
• | Perform the Transmission Adaptive Values Learn following all transmission related repairs. |
• | Perform the Control Solenoid Valve and Transmission Control Module Assembly Cleaning procedure. |
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