Fault code 0070

Fault code 0070

Starter battery voltage (second battery)

Diagnostic conditions
- Ignition on
- Internal control unit function test
- Starter battery (second battery) must be coded
- Measurement lead positive voltage < 1.5 V (or lead disconnected)
- Measurement lead negative voltage > 4.5 V (or lead disconnected)

Possible causes of fault
- 'implausible signal'

Affected pins
Plug 'P' on vehicle electrical system control unit:
- Pin 7 'input for positive measurement of starter battery' via fuse F10 in 'radiator tank E-box'
- Pin 14 'input for terminal 30 of starter battery' via fuse F10 in radiator tank E-box'