16500/P0116/000278 - Engine Coolant Temp. Sensor (G62): Implausible Signal
Possible Symptoms
* Starting the engine when engine is warmish or warm, idle rpm immediately is 1200 - 3000 rpm.
o Diesel: an indication is extreme long time burning time of the glow indication light.
* With all engine temperatures seldom idle rpm will vary between 900 - 1000 rpm.
* With engine warm (90 °C) the engine temperature suddenly drops (70 °C) and slowly comes back to 90 °C.
Possible Causes
* Wiring and/or connections faulty
* Engine Coolant Sensor (G62) faulty
Possible Solutions
* Check wiring and connections
* Replace Engine Coolant Sensor (G62)
00532 - Supply Voltage B+
00532 - Supply Voltage B+: Signal too Low
Possible Causes
* Wiring/Connectors from/to Control Module faulty
* Power Supply (Battery/Generator) faulty
Possible Solutions
* Check/Repair Wiring/Connectors from/to Control Module
* Check Power Supply (Battery/Generator)
Special Notes
* When found in an individual control module, it's most likely a local source (e.g. wiring/connectors).
* When found in multiple control modules at the same time, it's most likely a common source (e.g. ground spot, battery, generator).
* Intermittent codes are often stored during low outside temperature when the battery capacity goes down and may be ignored.
* Common with 16946/P0562/001378 - System Voltage: Too Low stored in other control modules.
