DTC P150C (LUJ)
Diagnostic Instructions
DTC Descriptor
DTC P150C: Transmission Control Module Engine
Speed Request Signal Message Counter Incorrect |
Circuit/System Description
This diagnostic applies to communication integrity between the
engine control module (ECM) and the transmission control module
(TCM). The ECM determines that the engine speed signal counter is
incorrect for the current vehicle operation.
Conditions for Running the DTC
• |
The ignition switch is in
Unlock, Accessory, Run or Crank. |
• |
The system voltage is more
than 5.23 V. |
• |
DTCs P0601, P0602, P0603,
P0604, P0606, P0607, P062F, P0641, P0651, P2610 and U0101 are not
set. |
Conditions for Setting the DTC
The ECM detects that the TCM engine speed request circuit does
not match the expected engine speed request circuit. Each test runs
in 5 milliseconds. This DTC runs continuously.
Action Taken When the DTC Sets
DTC P150C is a Type B DTC.
Conditions for Clearing the DTC
DTC P150C is a Type B DTC.
Reference Information
Description and Operation
Engine Control Module Description
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Engine Control Module Scan Tool Information for scan tool
information
Circuit/System Verification
1. |
Ignition ON, observe the DTC
information with a scan tool. DTC U0101 should not be set.
|
⇒ |
If DTC U0101 is set, repair that DTC first. |
2. |
Observe the DTC information
with a scan tool. DTCs P0601, P0603, P0604, P0606, P0607, P0610,
P062B, P0630, P167D or P2610 should not set. If a DTC failed this
ignition, replace the K20 Engine Control Module. Operate the
vehicle within the Conditions for Running the DTC to verify the DTC
does not reset. You may also operate the vehicle within the
conditions that you observed from the Freeze Frame/Failure Records
data. |
Circuit/System Testing
Replace the K71 Transmission Control Module.
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
Control Module References for ECM replacement, setup and
programming
|