Pinpoint Test F: The Speedometer Is Inoperative
Instrumentation, Message Center and Warning Chimes
Pinpoint Test F: The Speedometer Is Inoperative
Normal Operation
The Instrument Panel Cluster (IPC) receives the Vehicle Speed Sensor (VSS) signal from the PCM (non-hybrid) or from the Transmission Control Module (TCM) (hybrid) over the High Speed Controller Area Network (HS-CAN) communication bus. The PCM or TCM receives the VSS input from the Output Shaft Speed (OSS). The IPC monitors the VSS input from the PCM or TCM and commands the speedometer with a corresponding movement of the pointer.
If the vehicle speed data is missing for 5 seconds or less or if the IPC receives invalid vehicle speed data for 5 seconds or less, the IPC defaults the speedometer to the last setting, based upon the last known good vehicle speed message. If the IPC does not receive the vehicle speed data for more than 5 seconds, the IPC sets DTC U0100:00 (non-hybrid) or U0101:00 (hybrid) in continuous memory and defaults the speedometer to 0 km/h (0 mph). If the vehicle speed data received is deemed invalid by the IPC for 5 seconds or more, the IPC sets DTC U0401:68 (non-hybrid) or U0402:68 and defaults the speedometer to 0 km/h (0 mph).
NOTE: If DTC U0100:00 is set in the IPC, other observable symptoms may be an inoperative tachometer, temperature gauge or odometer.
This pinpoint test is intended to diagnose the following:
- PCM (non-hybrid)
- TCM (hybrid)
- IPC
PINPOINT TEST F: THE SPEEDOMETER IS INOPERATIVE
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F1 RETRIEVE THE RECORDED DTCs FROM THE PCM AND TCM KOEO SELF-TEST
- Check for recorded PCM and TCM DTCs from the Key ON Engine OFF (KOEO) self-test.
- Are any DTCs recorded?
Yes
DIAGNOSE all PCM and TCM DTCs first. REFER to Computers and Control Systems Information.
No
GO to F2.
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F2 CARRY OUT THE SPEEDOMETER ACTIVE COMMAND USING THE SCAN TOOL
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IPC DataLogger .
- Select the IPC speedometer (SPDOMETER) active command. Command the speedometer according to the following table while monitoring the speedometer.
- Does the speed begin at 0 km/h (0 mph) move to 97 km/h (60 mph) then 193 km/h (120 mph) and return to 0 km/h (0 mph)?
Yes
GO to F3.
No
INSTALL a new IPC. REFER to Instrument Panel Cluster (IPC) Instrument Panel Cluster (IPC). TEST the system for normal operation.
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F3 RETRIEVE THE RECORDED DTCs FROM THE IPC SELF-TEST
- Check for recorded DTCs from the IPC self-test.
- Are any DTCs recorded?
Yes
For DTC U0100:00 (non-hybrid), GO to Pinpoint Test BF. Pinpoint Tests BF: DTC U0100:00
For DTC U0101:00 (hybrid), GO to Pinpoint Test BG. Pinpoint Tests BG: DTC U0101:00
For DTC U0401:68 (non-hybrid) or U0402:68 (hybrid), RETRIEVE and REPAIR all non-network DTCs in the PCM and other modules on the network. REFER to Computers and Control Systems Information and Multifunction Electronic Modules Testing and Inspection for a list of all DTCs.
For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes
No
For non-hybrid vehicles, INSTALL a new PCM. TEST the system for normal operation.
For hybrid vehicles, INSTALL a new transaxle (TCM). REFER to Automatic Transaxle/Transmission - Electronically Controlled Continuously Variable Transmission (eCVT) Installation. TEST the system for normal operation.
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