Pinpoint Test E: The Speedometer Is Inoperative
Instrumentation, Message Center and Warning Chimes
Pinpoint Tests
Pinpoint Test E: The Speedometer Is Inoperative
Normal Operation
The Instrument Cluster (IC) receives the vehicle speed signal from the PCM (non-hybrid) and from the Transmission Control Module (TCM) (hybrid) over the High Speed Controller Area Network (HS-CAN) communication bus. The PCM (non-hybrid) or TCM (hybrid) receive the vehicle speed data from the Output Shaft Speed (OSS) sensor. The IC monitors the vehicle speed input from the PCM or TCM and commands the speedometer with a corresponding movement of the pointer.
If the IC receives invalid vehicle speed data from the PCM/TCM for 5 seconds or less, the IC defaults the speedometer to the last setting, based upon the last known good vehicle speed message.
If the IC does not receive the vehicle speed data from the PCM/TCM, the IC sets DTC U0100 (non-hybrid) or U0101 (hybrid) in continuous memory and defaults the speedometer to 0 km/h (0 mph).
If the IC receives invalid data for more than 5 seconds, the IC sets DTC U2197 and defaults the speedometer to 0 km/h (0mph).
NOTE: If DTC U0100 is set in the IC, other observable symptoms may be an inoperative tachometer, temperature gauge (non-hybrid) or odometer.
This pinpoint test is intended to diagnose the following:
- PCM (non-hybrid)
- TCM (hybrid)
- IC
PINPOINT TEST E: THE SPEEDOMETER IS INOPERATIVE
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E1 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO AND TCM SELF-TESTS
- Check for recorded DTCs from the PCM Key ON Engine OFF (KOEO) and TCM self-tests.
- Are any PCM or TCM DTCs recorded?
Yes
REFER to Computers and Control Systems Information.
No
GO to E2.
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E2 CARRY OUT THE SPEEDOMETER ACTIVE COMMAND USING THE SCAN TOOL
- Ignition ON.
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC speedometer (SPDOMETER) active command. Command the speedometer on and off while monitoring the speedometer.
- Does the speed begin at 0 km/h (0 mph) move to 193 km/h (120 mph) and return to 0 km/h (0 mph)?
Yes
GO to E3.
No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.
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E3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST
- Check for recorded IC DTCs from the self-test.
- Are any DTCs recorded?
Yes
For DTC U0100, GO to Pinpoint Test AV. Pinpoint Tests AV: DTC U0100
For DTC U0101, GO to Pinpoint Test AW. Pinpoint Tests AW: DTC U0101
For all other DTCs, REFER to DTC Charts. Instrumentation, Message Center and Warning Chimes
No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.
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